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AI2Utils 拓展：一些常用的小功能集合 · App Inventor 2 中文网
...uzzyMatch)
通过姓名查找通讯录，返回 (联系人,手机号) 的列表。fuzzyMatch：是否模糊匹配
FindContactsByNumber(number,fuzzyMatch)
通过手机号查找通讯录，返回 (联系人,手机号) 的列表。fuzzyMatch：是否模糊匹配
GoHome()
返回手机桌面...
MultiImagePicker 拓展：图片单选/多选扩展 · App Inventor 2 中文网
...，可以一次选择多张：
选择后，返回多张图片的路径列表：
代码块参考如下：
属性
MimeFilter
图片过滤类型，默认是 image/*。单选和多选都会使用这个过滤条件。
事件
AfterMultiple...
App Inventor 2 MultiImagePicker 拓展：实现图片/视频多选功能 - App Inve...
...ck(paths) - 多选完成后触发，返回复制到本地后的图片路径列表
AfterSinglePick(path) - 单选完成后触发，返回复制到本地后的图片路径
ErrorOccurred(operation, message) - 当选择器打开失败或图片保存失败时触发
PickerCancelled(operation) - 当用...
Best way to convert string to bytes in Python 3?
...le, as in Python 2 the default character encoding is ASCII.
>>> 'äöä'.encode()
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 0: ordinal not in range(128)
...
Characters allowed in a URL
...URL parameter:
http://example.com/?^1234567890ß´qwertzuiopü+asdfghjklöä#<yxcvbnm,.-°!"§$%&/()=? `QWERTZUIOPÜ*ASDFGHJKLÖÄ\'>YXCVBNM;:_²³{[]}\|µ@€~
These were not encoded:
^0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ,.-!/()=?`*;:_{}[]\|~
Not encoded af...
How do I force my .NET application to run as administrator?
Once my program is installed on a client machine, how do I force my program to run as an administrator on Windows 7?
12 An...
App Inventor 2 经典蓝牙(SPP) 硬件接入：hc05 · App Inventor 2 中文网
...而非BLE拓展，必须在手机设置中配对成功才能出现在蓝牙列表中。
注意：
它的波特率是：38400，而非默认的9600。
上电之前按下硬件上的按钮，则进入AT模式，红灯慢闪；不按则默认进入透传模式，红灯快闪，等...
Mapping a function on the values of a map in Clojure
...ion that promises it's going to work.
– Jouni K. Seppänen
Mar 29 '11 at 10:40
1
@Jason Yeah, the...
Convert number strings with commas in pandas DataFrame to float
...
If you're reading in from csv then you can use the thousands arg:
df.read_csv('foo.tsv', sep='\t', thousands=',')
This method is likely to be more efficient than performing the operation as a separate step.
You need to set the locale first:
In ...
How can I unit test a GUI?
...erformance gain could one expect compared to MD5?
– Lèse majesté
Jul 4 '12 at 5:33
1
You answer...