在写demo验证SurfaceControlViewHost的时候,bindService提示 Unable to start service Intent U0: not found 在源代码里搜了下,找到是在如下方法里面里面打印出来的
// frameworks/base/services/core/java/com/android/server/am/ActiveServices.java…
代码来自https://github.com/idies/pyJHTDB/blob/master/examples/channel.ipynb
%matplotlib inline
import numpy as np
import math
import random
import pyJHTDB
import matplotlib.pyplot as plt
import time as ttN 3
T pyJHTDB.dbinfo.channel5200[time][-1]
time …
#对应代码练习 -- 创建考试成绩表 DROP TABLE IF EXISTS exam; CREATE TABLE exam ( id bigint, name VARCHAR(20), chinese DECIMAL(3,1), math DECIMAL(3,1), english DECIMAL(3,1) ); -- 插入测试数据 INSERT INTO exam (id,name, chinese, math, engli…