6.小程序页面布局 - 账单明细

文章目录

  • 1. 6.小程序页面布局 - 账单明细
    • 1.1. 竞品
    • 1.2. 布局分析
    • 1.3. 布局demo
    • 1.4. 页面实现-头部
    • 1.5. 账单明细
      • 1.5.1. 账单明细-竞品分析
      • 1.5.2. 账单明细-实现
        • 1.5.2.1. 账单明细-实现-mock数据
        • 1.5.2.2. 每日收支数据的聚合整理
        • 1.5.2.3. 页面scroll-view
    • 1.6. TODO

1. 6.小程序页面布局 - 账单明细

1.1. 竞品

之前已经做好了《5.小程序页面布局 - 记账页面》

现在开始进行编写账单明细的页面,还是一样的套路,我们看看竞品大概是什么样:

1.2. 布局分析

  1. 竞品主要是3大块:

    头部:显式时间、收入、支出总览

    快捷入口:一些按钮,账单、预算、资产管家等

    账单明细:按天,当月倒序排列,如果一天有多笔支出,要计算一下当日汇总。(参考上图的“4月27日”效果)

  2. 我们现在要做什么?

    头部需要:一样显式时间,增加一个“切换账簿”,来支持切换到其他的账簿合作记账

    快捷入口:暂时取消,待功能需求稳定后增加

    账单明细:参考竞品

1.3. 布局demo

直接看结果先:

整体还是一目了然的,已经把各个区域加了边框。

尽量使用了简单的布局方式,没有加样式,因为我们主要使用vView组件来做实现。

布局,主要使用的就是flex布局。

上图的源码:

<!DOCTYPE html>
<html lang="en"><head><meta charset="UTF-8"><title>Document</title><style>* {margin: 0;}body {width: 390px;}/* 头部区域样式 */.header {background-color: aliceblue;height: 150px;display: flex;align-items: center;}/* 头部的4个块,flex布局,平分 */.header .header-date,.header .header-income,.header .header-out,.header .header-switch {height: 100px;border: 1px solid black;/* 每个块,都占总宽度的25% */width: 25%;/* 开启flex布局 */display: flex;/* 主轴是y轴,这样,可以让里面的内容上下排布 */flex-direction: column;/* 主轴y轴居中对齐 */justify-content: center;/* 侧轴x轴居中对齐 */align-items: center;/* 每个块,都是100%宽度,不然就是靠内容撑开的宽度 */width: 100%;}/* 列表区域布局 */.content {background-color: antiquewhite;height: 644px;}/* 当日小计 */.content .content-day-header {height: 28px;display: flex;justify-content: space-between;margin: 0 20px;background-color: #808080;align-items: center;}.content .content-day-list {/* display: flex; */}/* 支出明细 */.content .content-day-list .content-day-list-line {width: 90%;height: 43px;display: flex;justify-content: space-between;margin: 0 auto;}/* 支出明细 - 左边的 图+名目 */.line-left {width: 100px;display: flex;border: 1px solid black;align-items: center;}.line-left img {width: 24px;height: 24px;}/* 支出明细 - 右边的 金额 */.line-right {width: 100px;display: flex;justify-content: flex-end;border: 1px solid black;align-items: center;}</style>
</head><body><div class="header"><div class="header-date"><div>2024</div><div>05月 🔽</div></div><div class="header-income"><div>收入</div><div>9999.99元</div></div><div class="header-out"><div>支出</div><div>8888.88元</div></div><div class="header-switch"><div>切换账单</div></div></div><div class="content"><!-- 第一天 --><div class="content-day-header"><div>04月27日 星期六</div><div>-299</div></div><div class="content-day-list"><div class="content-day-list-line"><div class="line-left"><div class="line-img"><img src="礼物.png" /></div><div class="line-text">餐饮</div></div><div class="line-right"><div class="line-money">-200</div></div></div><div class="content-day-list-line"><div class="line-left"><div class="line-img"><img src="交通.png" /></div><div class="line-text">交通</div></div><div class="line-right"><div class="line-money">-99</div></div></div></div><!-- 第二天 --><div class="content-day-header"><div>04月27日 星期六</div><div>-299</div></div><div class="content-day-list"><div class="content-day-list-line"><div class="line-left"><div class="line-img"><img src="礼物.png" /></div><div class="line-text">餐饮</div></div><div class="line-right"><div class="line-money">-200</div></div></div><div class="content-day-list-line"><div class="line-left"><div class="line-img"><img src="交通.png" /></div><div class="line-text">交通</div></div><div class="line-right"><div class="line-money">-99</div></div></div></div></div></body></html>

1.4. 页面实现-头部

  • 实现的效果:

    共4个块,均分。

    背景是渐变色。

  • 布局代码:

<div class="header"><div class="header-date"><div class="line1-text">2024</div><div class="line2-text">05<span class="line2-text-small">月</span><u-icon style="margin-left: 5px;" name="arrow-down-fill"></u-icon></div></div><div class="header-income"><div class="line1-text">收入</div><div class="line2-text">99999.99<span class="line2-text-small">元</span></div></div><div class="header-out"><div class="line1-text">支出</div><div class="line2-text">88888.88<span class="line2-text-small">元</span></div></div><div class="header-switch"><div><image style="width: 60rpx; height: 60rpx;" src="../../static/账簿.png"></image></div><div style="font-size: 13px;">切换账簿</div></div></div>
  • css代码

    /* 头部区域样式 */.header {/* background-color: aliceblue; */background-image: linear-gradient(rgba(249, 219, 97, 1), rgba(250, 230, 200, 1));height: 120px;display: flex;align-items: center;}.header .line1-text {color: #808080; font-size: 12px;}.header .line2-text {color: #000000; font-size: 15px;margin-top: 15rpx;}.header .line2-text-small {font-size: 12px; color: #808080;}/* 头部的4个块,flex布局,平分 */.header .header-date,.header .header-income,.header .header-out,.header .header-switch {height: 100px;/* border: 1px solid black; *//* 每个块,都占总宽度的25% */width: 25%;/* 开启flex布局 */display: flex;/* 主轴是y轴,这样,可以让里面的内容上下排布 */flex-direction: column;/* 主轴y轴居中对齐 */justify-content: center;/* 侧轴x轴居中对齐 */align-items: center;/* 每个块,都是100%宽度,不然就是靠内容撑开的宽度 */width: 100%;}
    

1.5. 账单明细

// 计算scroll-view高度
let _this = this;
uni.getSystemInfo({success(res) {_this.phone_height = res.windowHeightlet v = uni.createSelectorQuery().select(".h");v.boundingClientRect(data => {_this.scroll_view_height = _this.phone_height - data.height;}).exec();}
})

1.5.1. 账单明细-竞品分析

这个跟我们借鉴的布局方式差不多,大概长这个样:

分析:

  1. 账单明细部分,是一个大的块
  2. 包含了按天倒序展示的内容
  3. 如果当天有多笔数据,要做一个汇总
  4. 汇总单独占一行,显式:时间、星期几、当日支出小计、当日收入小计

1.5.2. 账单明细-实现

我们的实现:

  1. 先使用mock数据来做页面
  2. 要将每日的数据先进行计算,得到按自然天倒序排序的数组
  3. 当天数据,还要包含一个数组,这个数组里的数据,才是每天的收支记录明细。
  4. 我们使用uniapp的scroll-view来做大容器。这样可以做:下拉刷新到上月数据。触底加载下一个月数据。

看看实现的结果,再分步实现:

1.5.2.1. 账单明细-实现-mock数据

这个是好理解的,我们为了能够和后面的api部分解绑,就不在vue文件中写死数据,而是用一个外部导入的js方法来承载mock数据。

/js目录创建 api_bill_crud.js文件,录入以下mock内容(意思是,加载某用于某月收支明细数据):

export function getUserMonthBillList(openid, month_int) {return new Promise((resolve, reject) => {let mockMonthBills = [{"_id":"66397bf9f08210b07d2bf163","openid":"oCIe95E0U1WibyRNJ864n-okoRT0","category":"通讯","bill_id":"2024-05-07_1715043320337","收支":"支出","bill_money":-96,"年":"2024","月":"05","日":"07","time":"05月07日","week":"星期二","bill_type":"通讯","desc":"手机话费","icon":"../../static/type/通讯.png","date_str":"20240507","date_int":20240507,"full_date_str":"2024-05-07","update_time":"2024-05-07T00:55:20.336Z","date":"2024-05-07T00:55:21.339Z"},{"_id":"6639af53b9fb2360b051521e","openid":"oCIe95E0U1WibyRNJ864n-okoRT0","category":"学习","bill_id":"2024-05-07_1715056466394","收支":"支出","bill_money":-60,"年":"2024","月":"05","日":"07","time":"05月07日","week":"星期二","bill_type":"学习","desc":"unicloud云一年","icon":"../../static/type/学习.png","date_str":"20240507","date_int":20240507,"full_date_str":"2024-05-07","update_time":"2024-05-07T04:34:26.393Z","date":"2024-05-07T04:34:27.369Z"},{"_id":"663834278a5c7863b10cca32","openid":"oCIe95E0U1WibyRNJ864n-okoRT0","category":"学习","bill_id":"2024-05-06_1714959398647","收支":"支出","bill_money":-30,"年":"2024","月":"05","日":"06","time":"05月06日","week":"星期一","bill_type":"学习","desc":"小程序费用","icon":"../../static/type/学习.png","date_str":"20240506","date_int":20240506,"full_date_str":"2024-05-06","date":"2024-05-06T01:36:39.593Z"},{"_id":"6638579e3d029c65e9ceedc7","openid":"oCIe95E0U1WibyRNJ864n-okoRT0","category":"购物","bill_id":"2024-05-06_1714968477135","收支":"支出","bill_money":-40,"年":"2024","月":"05","日":"06","time":"05月06日","week":"星期一","bill_type":"购物","desc":"口罩","icon":"../../static/type/购物.png","date_str":"20240506","date_int":20240506,"full_date_str":"2024-05-06","date":"2024-05-06T04:07:58.740Z","update_time":"2024-05-06T10:05:54.923Z"},{"_id":"6638afef0d2b315faf286f70","openid":"oCIe95E0U1WibyRNJ864n-okoRT0","category":"孩子","bill_id":"2024-05-06_1714991085662","收支":"支出","bill_money":-252,"年":"2024","月":"05","日":"06","time":"05月06日","week":"星期一","bill_type":"孩子","desc":"5月份餐费","icon":"../../static/type/孩子.png","date_str":"20240506","date_int":20240506,"full_date_str":"2024-05-06","date":"2024-05-06T10:24:47.753Z","update_time":"2024-05-06T13:05:54.923Z"},{"_id":"663437948620667bb4eae083","openid":"oCIe95E0U1WibyRNJ864n-okoRT0","category":"餐饮","bill_id":"2024-05-03_1714698130514","收支":"支出","bill_money":-17.5,"年":"2024","月":"05","日":"03","time":"05月03日","week":"星期五","bill_type":"餐饮","desc":"早餐","icon":"../../static/type/餐饮.png","date_str":"20240503","date_int":20240503,"full_date_str":"2024-05-03","date":"2024-05-03T01:02:12.243Z"},{"_id":"663565d7466d41f585ec6ef8","openid":"oCIe95E0U1WibyRNJ864n-okoRT0","category":"电","bill_id":"2024-05-03_1714775509594","收支":"支出","bill_money":-84,"年":"2024","月":"05","日":"03","time":"05月03日","week":"星期五","bill_type":"电","desc":"","icon":"../../static/type/电.png","date_str":"20240503","date_int":20240503,"full_date_str":"2024-05-03","date":"2024-05-03T22:31:51.116Z"},{"_id":"663784b78a5c7863b1fd7faf","openid":"oCIe95E0U1WibyRNJ864n-okoRT0","category":"旅行","bill_id":"2024-05-03_1714914486668","收支":"支出","bill_money":-200,"年":"2024","月":"05","日":"03","time":"05月03日","week":"星期五","bill_type":"旅行","desc":"宜兴","icon":"../../static/type/旅行.png","date_str":"20240503","date_int":20240503,"full_date_str":"2024-05-03","date":"2024-05-05T13:08:06.713Z"},{"_id":"6632f2d1c3b5c96502a740d1","openid":"oCIe95E0U1WibyRNJ864n-okoRT0","category":"餐饮","bill_id":"2024-05-02_1714614991720","收支":"支出","bill_money":-10,"年":"2024","月":"05","日":"02","time":"05月02日","week":"星期四","bill_type":"餐饮","desc":"串","icon":"../../static/type/餐饮.png","date_str":"20240502","date_int":20240502,"full_date_str":"2024-05-02","date":"2024-05-02T01:56:33.398Z"},{"_id":"6632f61b0d2b315faf862e8b","openid":"oCIe95E0U1WibyRNJ864n-okoRT0","category":"零食","bill_id":"2024-05-02_1714615833865","收支":"支出","bill_money":-7,"年":"2024","月":"05","日":"02","time":"05月02日","week":"星期四","bill_type":"零食","desc":"蜜雪冰城","icon":"../../static/type/零食.png","date_str":"20240502","date_int":20240502,"full_date_str":"2024-05-02","date":"2024-05-02T02:10:35.481Z"},{"_id":"6633207a652341ed5e77f151","openid":"oCIe95E0U1WibyRNJ864n-okoRT0","category":"餐饮","bill_id":"2024-05-02_1714626680512","收支":"支出","bill_money":-127,"年":"2024","月":"05","日":"02","time":"05月02日","week":"星期四","bill_type":"餐饮","desc":"午餐","icon":"../../static/type/餐饮.png","date_str":"20240502","date_int":20240502,"full_date_str":"2024-05-02","date":"2024-05-02T05:11:22.131Z"},{"_id":"663380971c90b65e4337d32e","openid":"oCIe95E0U1WibyRNJ864n-okoRT0","category":"零食","bill_id":"2024-05-02_1714651286335","收支":"支出","bill_money":-30,"年":"2024","月":"05","日":"02","time":"05月02日","week":"星期四","bill_type":"零食","desc":"","icon":"../../static/type/零食.png","date_str":"20240502","date_int":20240502,"full_date_str":"2024-05-02","date":"2024-05-02T12:01:27.867Z"},{"_id":"66338ea29755e328304923bf","openid":"oCIe95E0U1WibyRNJ864n-okoRT0","category":"餐饮","bill_id":"2024-05-02_1714654880413","收支":"支出","bill_money":-8.5,"年":"2024","月":"05","日":"02","time":"05月02日","week":"星期四","bill_type":"餐饮","desc":"紫燕","icon":"../../static/type/餐饮.png","date_str":"20240502","date_int":20240502,"full_date_str":"2024-05-02","date":"2024-05-02T13:01:22.254Z"},{"_id":"6632f786eef9cb63bb41c538","openid":"oCIe95E0U1WibyRNJ864n-okoRT0","category":"餐饮","bill_id":"2024-05-01_1714616197749","收支":"支出","bill_money":-21,"年":"2024","月":"05","日":"01","time":"05月01日","week":"星期三","bill_type":"餐饮","desc":"猪头肉","icon":"../../static/type/餐饮.png","date_str":"20240501","date_int":20240501,"full_date_str":"2024-05-01","date":"2024-05-02T02:16:38.660Z"},{"_id":"6632f79aee97ef5896c1151f","openid":"oCIe95E0U1WibyRNJ864n-okoRT0","category":"水果","bill_id":"2024-05-01_1714616217844","收支":"支出","bill_money":-21,"年":"2024","月":"05","日":"01","time":"05月01日","week":"星期三","bill_type":"水果","desc":"西瓜","icon":"../../static/type/水果.png","date_str":"20240501","date_int":20240501,"full_date_str":"2024-05-01","date":"2024-05-02T02:16:58.130Z"},{"_id":"663108b0ee97ef58968d7957","openid":"oCIe95E0U1WibyRNJ864n-okoRT0","category":"工资","bill_id":"2024-04-30_1714489520278","收支":"收入","bill_money":7000,"年":"2024","月":"04","日":"30","time":"04月30日","week":"星期二","bill_type":"工资","desc":"","icon":"../../static/type/工资.png","date_str":"20240430","date_int":20240430,"full_date_str":"2024-04-30","date":"2024-04-30T15:05:20.363Z"}];resolve(mockMonthBills);})
}

这里用到了Promise,其实主要作用了是为了让后面的api接口异步调用操作变为同步等待,减少回调地域问题。

使用时,在使用此方法前加async即可。

// 测试数据,用以验证页面布局及样式
let result = await getUserMonthBillList('1332', 5);
console.log('获取用户x月份账单成功');
this.month_bills = result;
1.5.2.2. 每日收支数据的聚合整理

按照前面的分析:

2. 要将每日的数据先进行计算,得到按自然天倒序排序的数组
3. 当天数据,还要包含一个数组,这个数组里的数据,才是每天的收支记录明细。 

然后我们已经有了mock数据,最好还是也封装一个方法,进行收支数据的处理:

/js目录创建 bill_calculate.js文件,录入以下内容:

/*** @param {Object} month_bill_list  某月的所有收支明细数据* @return {number} income_month 此月收入合计* @@return {number} expenditure_month 此月支出合计* @@return {Array} user_bill_list 按天为item的数组,每个item是当天发生的收支明细*/
export function transformBills(month_bill_list) {// 先按照时间进行排序,然后将数据按天汇总。let sorted_detail_list = Array.from(month_bill_list).sort((a, b) => b['date_int'] - a['date_int']);// sorted_detail_list = sorted_detail_list.filter(item => item['月'] == this.month);let user_bill_list = []let income_month = 0let expenditure_month = 0sorted_detail_list.map(function(this_bill) {let today_summary = user_bill_list.find(item => item['日'] == this_bill['日']);if (today_summary == undefined) {let expenditure = this_bill['收支'] == '支出' ? Math.abs(this_bill['bill_money']) : 0;let income = this_bill['收支'] == '收入' ? this_bill['bill_money'] : 0;expenditure_month = this_bill['收支'] == '支出' ? expenditure_month+this_bill['bill_money']: expenditure_month;income_month = this_bill['收支'] == '收入' ? income_month+this_bill['bill_money']: income_month;today_summary = {expenditure: parseFloat(expenditure),income: parseFloat(income),list: [this_bill],time: this_bill.time,week: this_bill.week,full_date: this_bill.date_str,'日': this_bill['日']};user_bill_list.push(today_summary);  // 后来的放后面} else {// 计算对应日期的消费、收入汇总let expenditure = this_bill['收支'] == '支出' ? today_summary.expenditure + Math.abs(this_bill['bill_money']) : today_summary.expenditure;let income = this_bill['收支'] == '收入' ? today_summary.income + this_bill['bill_money'] :today_summary.income;expenditure_month = this_bill['收支'] == '支出' ? expenditure_month+this_bill['bill_money']: expenditure_month;income_month = this_bill['收支'] == '收入' ? income_month+this_bill['bill_money']: income_month;today_summary.expenditure = expenditure;today_summary.income = income;today_summary.list = [this_bill, ...today_summary.list];}});return [income_month.toFixed(2), expenditure_month.toFixed(2), user_bill_list]
}
1.5.2.3. 页面scroll-view

为什么使用scroll-view,前面已经提到:

4. 我们使用uniapp的scroll-view来做大容器。这样可以做:下拉刷新到上月数据。触底加载下一个月数据。

实现起来,主要就是页面、js、css

  • 页面

    <view v-if="transfromedBills.length > 0"><scroll-view scroll-y="true" :style="{height:scroll_view_height+'px'}" refresher-enabled="true":refresher-triggered="refresherTriggered" @refresherrefresh="refresher()"@scrolltolower="loadMore"><view><view v-for="(item, index) in transfromedBills" :key="index"><view class="u-flex list-box day_summary"><view class="u-m-r-10 u-flex-1"><view class="header-text"> {{item.time}} {{item.week}}</view></view><view class="u-m-r-10 u-flex-1"><view class="header-text">{{income_str}} {{item.income}}</view></view><view class="u-m-r-10 u-flex-1"><view class="header-text">{{expenditure_str}} {{item.expenditure}}</view></view></view><view class="list-box-children" v-for="(item1, index1) in item.list" :key="index1"@click="toDetail(item1)"><view class="u-flex"><image slot="icon" class="box-icon" :src="item1.icon" mode="" :lazy-load="lazy_load"></image></view><view class="box-left">{{item1.bill_type}}</view><view class="box-desc">{{item1.desc}}</view><view class="u-flex-1 box-right">{{item1.bill_money}}</view></view></view></view></scroll-view></view>
    
  • js

    <script>import {useStore} from 'vuex';import {getUserMonthBillList} from '@/js/api_bill_crud.js';import {transformBills} from '@/js/bill_calculate.js';export default {data() {return {current_year: new Date().getFullYear(),current_month: new Date().getMonth() + 1,tabbar: [],month_bills: [],transfromedBills: [],income: 0,expenditure: 0,expenditure_str: '', // ??lazy_load: true, //?refresherTriggered: false, // 设置当前下拉刷新状态,true 表示下拉刷新已经被触发,false 表示下拉刷新未被触发scroll_view_height: 0,income_str: '',}},methods: {refresher() {console.log('下拉刷新');if (this._refresherTriggered) {return;}// 去加载上一个月的数据if (this.current_month == 1) {this.current_month = 12;this.current_year = this.current_year - 1;}else {this.current_month = this.current_month - 1;}console.log('要去加载上个月的年{}月{}', this.current_year, this.current_month);var that = this;if (!this.refresherTriggered) {//下拉刷新,先变true再变false才能关闭this.refresherTriggered = true;//关掉圈圈,需要先执行完刷新操作setTimeout(() => {that.refresherTriggered = false;}, 1000);}},loadMore() {console.log('加载更多loadMore');// 去加载下一个月的数据if (this.current_month == 12) {this.current_month = 1;this.current_year = this.current_year + 1;}else {this.current_month = this.current_month + 1;}console.log('要去加载下个月的年{}月{}', this.current_year, this.current_month);}},async onShow() {let [income, expenditure, transfromedBills] = transformBills(this.month_bills);this.transfromedBills = transfromedBills;this.income = income;this.expenditure = expenditure;console.log('账单计算成功');// console.log(income);// console.log(expenditure);// console.log(transfromedBills);},async onLoad() {const store = useStore(); //获取store对象/*** 示例中为每个tabbar页面都写了一遍tabbar变量,您可以将tabbar数组写入到vuex中,这样可以全局引用*/this.tabbar = store.getters.getTabbar;// scroll-view高度,暂不计算。this.scroll_view_height = 600// 测试数据,用以验证页面布局及样式let result = await getUserMonthBillList('1332', 5);console.log('获取用户x月份账单成功');this.month_bills = result;let [income, expenditure, transfromedBills] = transformBills(this.month_bills);this.transfromedBills = transfromedBills;this.income = income;this.expenditure = expenditure;console.log('账单计算成功');}}
    </script>
    
  • css

    <style lang="scss">.u-flex {display: flex;flex-direction: row;align-items: center;}.day_summary {background-color: #f7f7f7;}.list-box {padding: 18rpx 18rpx 18rpx 40rpx;}.list-box-children {display: -webkit-box;display: -webkit-flex;display: flex;-webkit-box-orient: horizontal;-webkit-box-direction: normal;-webkit-flex-direction: row;flex-direction: row;-webkit-box-align: center;-webkit-align-items: center;align-items: center;position: relative;box-sizing: border-box;width: 100%;padding: 26rpx 32rpx;font-size: 28rpx;line-height: 50rpx;color: #606266;background-color: #fff;text-align: left;.box-icon {width: 50rpx;height: 50rpx;margin-right: 35rpx;}.box-left {width: auto;font-weight: 500;font-size: 28rpx;}.box-right {overflow: hidden;text-align: right;vertical-align: middle;color: #909399;font-size: 26rpx;}.box-desc {font-weight: 500;width: 300rpx;margin-left: 50rpx;overflow: hidden;text-overflow: ellipsis;-ms-text-overflow: ellipsis;display: -webkit-box;line-clamp: 1;-webkit-line-clamp: 1;-webkit-box-orient: vertical;}}.u-m-r-10 {margin-right: 10rpx !important;}.u-flex-1 {flex: 1;}.header-text {font-size: 25rpx;color: #7a7a7a;}
    </style>
    

    通过下拉刷新和触底加载更多,页面能正确的处理调用,后面通过api再完善真是数据的处理

1.6. TODO

内容较多,下一节再处理:

  1. 点击更新或删除明细账单
  2. 头部数据的联动,不再是固定数据
  3. 月份可以点击下拉箭头自行快速选择
  4. 每日的收支汇总,布局要再优化一下。

本文来自互联网用户投稿,该文观点仅代表作者本人,不代表本站立场。本站仅提供信息存储空间服务,不拥有所有权,不承担相关法律责任。如若转载,请注明出处:http://www.mzph.cn/diannao/15521.shtml

如若内容造成侵权/违法违规/事实不符,请联系多彩编程网进行投诉反馈email:809451989@qq.com,一经查实,立即删除!

相关文章

java —— 封装、继承、接口和多态

一、封装 封装是将数据和操作这些数据的方法整合成一个类。在这个类中&#xff0c;用 private 修饰符将某些数据隐藏起来&#xff0c;只通过特定的方法实现这些数据的访问和修改&#xff0c;以此实现数据的完整和安全性。 封装的步骤&#xff1a; 二、继承 继承是指把子类共有…

Meta发布Chameleon模型预览,挑战多模态AI前沿

每周跟踪AI热点新闻动向和震撼发展 想要探索生成式人工智能的前沿进展吗&#xff1f;订阅我们的简报&#xff0c;深入解析最新的技术突破、实际应用案例和未来的趋势。与全球数同行一同&#xff0c;从行业内部的深度分析和实用指南中受益。不要错过这个机会&#xff0c;成为AI领…

【数据结构与算法】之堆的应用——堆排序及Top_K问题!

目录 1、堆排序 2、Top_K问题 3、完结散花 个人主页&#xff1a;秋风起&#xff0c;再归来~ 数据结构与算法 个人格言&#xff1a;悟已往之不谏&#xff0c;知来者犹可追 克心守己&#xff0c;律己则安&#xff01; 1、堆排序 对一个无序的数组…

03_前端三大件CSS

文章目录 CSS用于页面元素美化1.CSS引入1.1style方式1.2写入head中&#xff0c;通过写style然后进行标签选择器加载样式1.3外部样式表 2.CSS样式选择器2.1 元素选择器2.2 id选择器2.3 class选择器 3.CSS布局相关3.1 CSS浮动背景&#xff1a;先设计一些盒子因此&#xff0c;引出…

[图解]产品经理创新模式02改善信息流转

1 00:00:02,160 --> 00:00:04,000 第二种改进模式 2 00:00:04,010 --> 00:00:06,340 就是改善信息流转 3 00:00:06,550 --> 00:00:08,000 它是这样的 4 00:00:09,250 --> 00:00:11,290 当电脑系统越来越多的时候 5 00:00:11,300 --> 00:00:12,530 就会出现这…

linux centos stream 9 定时任务

定时任务,也称为计划任务,指在规定时间执行某项任务。在各操作系统中都有此功能,如Windows下的计划任务:定时关机等。 linux用户定时任务和系统定时任务是在Linux操作系统中用于自动执行特定任务的机制。它们基于cron(cron daemon)服务来完成的。 cron是linux系统中以后台…

Hive运行错误

Hive 文章目录 Hive错误日志错误SessionHiveMetaStoreClientql.Driver: FAILED: Execution Error, return code 2 from org.apache.hadoop.hive.ql.exec.mr.MapRedTaskerror: Could not find or load main class org.apache.hadoop.mapreduce.v2.app.MRAppMaster Please check …

DOS学习-目录与文件应用操作经典案例-type

新书上架~&#x1f447;全国包邮奥~ python实用小工具开发教程http://pythontoolsteach.com/3 欢迎关注我&#x1f446;&#xff0c;收藏下次不迷路┗|&#xff40;O′|┛ 嗷~~ 目录 一.前言 二.使用 三.案例 1. 查看文本文件内容 2. 同时查看多个文本文件内容 3. 合并文…

可视化 | Seaborn中的矩阵图及示例

Seaborn是python提供的一个很棒的可视化库。它有几种类型的绘图&#xff0c;通过这些绘图&#xff0c;它提供了惊人的可视化能力。其中一些包括计数图&#xff0c;散点图&#xff0c;配对图&#xff0c;回归图&#xff0c;矩阵图等等。本文讨论了Seaborn中的矩阵图。 示例1&am…

第十三期Big Demo Day聚焦Web3前沿,FaceN.AI项目路演揭幕创新技术

第十三期Big Demo Day活动即将于2024年5月28日在香港数码港的CyberArena隆重举行。FaceN.AI将亮相本次Big Demo Day&#xff0c;参与精彩的项目路演&#xff0c;展示其在跨链去中心化数字身份、On-chain to Off-chain数据应用、DIDFi探索以及元宇宙与AIGC人格化发展等领域的领先…

HTML静态网页成品作业(HTML+CSS)——宠物狗介绍网页(3个页面)

&#x1f389;不定期分享源码&#xff0c;关注不丢失哦 文章目录 一、作品介绍二、作品演示三、代码目录四、网站代码HTML部分代码 五、源码获取 一、作品介绍 &#x1f3f7;️本套采用HTMLCSS&#xff0c;未使用Javacsript代码&#xff0c;共有3个页面。 二、作品演示 三、代…

下载CentOS系统或者下载Ubuntu系统去哪下?

因为Centos官网是挂在国外的服务器上&#xff0c;下载镜像时相比于国内的下载速度会慢很多&#xff0c;分享国内的镜像站去阿里巴巴下载Centos镜像。 首先分享两种下载方式&#xff0c;如果只想下载Centos那么就访问方式一的下载地址即可&#xff0c;如果还想下载其他的系统&a…

【算法设计与分析】基于Go语言实现动态规划法解决TSP问题

本文针对于最近正在学习的Go语言&#xff0c;以及算法课实验所需内容进行Coding&#xff0c;一举两得&#xff01; 一、前言 由于这个实验不要求向之前的实验一样做到那种连线的可视化&#xff0c;故可以用图形界面不那么好实现的语言进行编写&#xff0c;考虑到Go语言的…

C# 结合 JS 暴改腾讯 IM SDK Demo

目录 关于腾讯 IM SDK Demo 范例运行环境 设计思路 服务端生成地址 IM 服务端接收 IM 客户端程序 小结 关于腾讯 IM SDK Demo 腾讯云即时通信 IM SDK 提供了单聊、群聊、关系链、消息漫游、群组管理、资料管理、直播弹幕等功能&#xff0c;并提供完备的 App 接入及管…

数据可视化第9天(利用wordcloud和jieba分析蝙蝠侠评论的关键字)

数据可以在这里下载 https://github.com/harkbox/DataAnalyseStudy WordCloud wordcloud可以很方便的生成词云图&#xff0c;方便的提供可视化可以直接使用pip install wordcloud进行安装如果使用的是Anaconda,可以使用conda install进行安装 下面看一个简单的例子 txt &qu…

【游戏引擎】Unity动画系统详解

持续更新。。。。。。。。。。。。。。。 【游戏引擎】Unity动画系统详解 Unity动画系统详解简介关键帧动画创建关键帧动画的步骤&#xff1a; Mecanim动画系统Mecanim的关键组件&#xff1a;使用Mecanim创建动画的步骤&#xff1a; 动画控制器动画控制器的高级功能&#xff1a…

【STM32CubeIDE】软件硬件SPI+六针OLED使用

前言 本文将介绍STM32 6针OLED的使用&#xff0c;分别使用软件和硬件两种SPI驱动方式&#xff0c;最终实现OLED显示TEST-ok字符和数字累加刷新显示 软件平台&#xff1a;STM32CubeIDEHAL库 硬件&#xff1a;STM32F103ZET6(正点原子战舰V3)六针OLED 题外话&#xff1a; 最…

Commons-Collections篇-CC1链小白基础分析学习

1.介绍 Apache Commons工具包中有⼀个组件叫做 Apache Commons Collections &#xff0c;其封装了Java 的 Collection(集合) 相关类对象&#xff0c;它提供了很多强有⼒的数据结构类型并且实现了各种集合工具类&#xff0c;Commons Collections被⼴泛应⽤于各种Java应⽤的开发&…

Windows安装VMware(Broadcom)

1.安装前提 1.检查BIOS中是否开启了虚拟化技术。1.1 打开任务管理器&#xff0c;查看性能&#xff0c;CPU部分&#xff0c;虚拟化处于“已启用”状态。1.2 如果没有开启&#xff0c;则需要进入BIOS系统&#xff0c;将 Intel Virtualization Technology改为Enalble。2.下载VMwa…

卷积神经网络CNN动态演示和输出特征图计算公式

目录 一、卷积运算 1、卷积&#xff08;Convolution&#xff09; 2、填充&#xff08;Padding&#xff09; &#xff08;1&#xff09;Valid Padding &#xff08;2&#xff09;Same Padding 3、步长 4、卷积核大小为什么一般为奇数奇数&#xff1f; 5、卷积核kernel和…