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What is the most useful script you've written for everyday life? [closed]
...re, but possibly the most useful script I wrote was, believe it or not, in VBA. I had an annoying colleague who had such a short fuse that I referred to him as Cherry Bomb. He would often get mad when customers would call and then stand up and start ranting at me over the cubicle wall, killing my ...
App Inventor 2 控制代码块 · App Inventor 2 中文网
...略结果
打开另一屏幕
打开另一屏幕并传值
获取初始文本值
获取初始值
关闭屏幕
关闭屏幕并返回文本
关闭屏幕并返回值
退出程序
跳出循环
如果 & 则（if & else if）
从范围循环(for each number from to)
从列表循...
AppInventor2 文本输入框（TextBox）已支持文本变更事件，非常便于实时处理...
自 v2.70开始，文本输入框加入了文本变更事件：
效果如下：
同理，密码输入框组件也是一样的。
AppInventor2 文本和数字如何转换？ - App应用开发 - 清泛IT社区，为创新赋能！
Q：AppInventor2 文本和数字如何转换？
A：先来一个文本转数字的情况：
定义一个变量赋初值 数字0，然后将文本设置给它，事实证明这时它自动变成了文本类型，而不再是数字。因此此方案行不通。
最彻底的方案：
[hide]
直...
App Inventor 2 模拟器不能正常朗读文本的解决方法 · App Inventor 2 中文网
... App Inventor 2 模拟器不能正常朗读文本的解决方法
1. 安装语音引擎
Google TTS 引擎：
其他语音引擎：
文本朗读器这个能不能也使用讯飞语音呢？
« 返...
How to convert a column number (e.g. 127) into an Excel column (e.g. AA)
...
If anyone needs to do this in Excel without VBA, here is a way:
=SUBSTITUTE(ADDRESS(1;colNum;4);"1";"")
where colNum is the column number
And in VBA:
Function GetColumnName(colNum As Integer) As String
Dim d As Integer
Dim m As Integer
Dim name As Stri...
Change MySQL default character set to UTF-8 in my.cnf?
...8, you want to add the following to my.cnf
[client]
default-character-set=utf8
[mysql]
default-character-set=utf8
[mysqld]
collation-server = utf8_unicode_ci
init-connect='SET NAMES utf8'
character-set-server = utf8
If you want to change the character set for an existing DB, let me know... you...
How to convert an entire MySQL database characterset and collation to UTF-8?
...ABASE and ALTER TABLE commands.
ALTER DATABASE databasename CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
ALTER TABLE tablename CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
Or if you're still on MySQL 5.5.2 or older which didn't support 4-byte UTF-8, use utf8 instead of utf8mb...
css 设置行间距，段落行高的方法 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...高的方法CSS行间距 line-height:xx px;下面我们讲述一下CSS的文本属性，还是先来看一下文本属性的详细列表：属性属性含义属性值Word-spacing定义...CSS行间距 line-height:xx px;
下面我们讲述一下CSS的文本属性，还是先来看一下文本属...
What's the difference between utf8_general_ci and utf8_unicode_ci?
Between utf8_general_ci and utf8_unicode_ci , are there any differences in terms of performance?
8 Answers
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