有两个对象,个人person、活动event。每个person可以参加多个event,每个event可以由多person参加。数据库表格如下:
event
- id [int (4),primary]
- name [varchar (30)]
- …person
- id [int (4),primary]
- name [varcha…
mac 升级过后,python项目运行报错python Shapely OSError: Could not find lib c or load any of its variants []。 在github上找到解决办法没记录如下: To recap, I removed anything dealing with conda that depends on geos:
conda remove geos, s…
标题[Vue warn]: children must be keyed:
今天学习了VUE的列表排序过渡 碰见报错 报错之前代码为:
<transition-group name"flip-list" tag"div"><van-cell v-for"(item,i) in list" v-bind:key"item.id">{…
错误如下
拿到公司一个小哥哥的代码,一来就报了一堆bug,吓得我先写一篇博客vue.runtime.esm.js?2b0e:619 [Vue warn]: Duplicate keys detected: /system. This may cause an update error.found in---> <Sidebar> at src/layout/components/S…
题目链接:https://vjudge.net/problem/POJ-1459 Power NetworkTime Limit: 2000MS Memory Limit: 32768KTotal Submissions: 29270 Accepted: 15191Description A power network consists of nodes (power stations, consumers and dispatchers) connected by power…