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App Inventor 2 语音合成与语音唤醒教程 · App Inventor 2 中文网
...度
文本朗读器1.Pitch = 1.0 // 正常音高
}
when 按钮_朗读.Click() {
文本朗读器1.Speak(文本输入框1.Text)
}
when 按钮_停止.Click() {
文本朗读器1.Stop()
}
语速和音高调整
when 滑动条1.PositionChanged(位置) {
// 语...
Arduino 101 实验10 - 舵机角度控制 · App Inventor 2 中文网
... 命名
关键属性
滑动条
滑动条_角度
最小值 0、最大值 180、初始 90
标签
标签_角度
字号 32，文本「90°」
按钮
按钮_归中
文本「归中 90°」
按...
你好世界 · App Inventor 2 中文网
... 关键设置
列表选择器
列表选择器_语言
提示：选择语言
标签
标签_问候
初始文本留空
标签
标签_提示
显示当前语言
文本朗读器
文本朗读器...
日期计算器与倒数日：日期选择框取前一天、日期加减、相差天数（附 .aia 源...
...M-dd"), " ", 星期表[计时器1.Weekday(时刻)])
}
when 日期选择框_日期.AfterDateSet() {
var 选中 = 日期选择框_日期.Instant
标签_日期结果.Text = join("选中：", 日期文字(选中), "\n前一天：", 日期文字(计时器1.AddDays(选中, -1)), "\n后一天：", 日...
文本文件读写助手：创建、追加一行、读最后一行、统计行数（附 .aia 源码）...
...——不能在调用 ReadFrom 的下一句就去用内容。
when 按钮_保存.Click() {
文件管理器1.SaveFile(join(文本输入框_内容.Text, "\n"), join("notes/", 文本输入框_文件名.Text))
}
when 按钮_追加.Click() {
文件管理器1.AppendToFile(join(文本输入框_内容...
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...
liggett78liggett78
11k22 gold badges2525 silver badges2727 bronze badges
...
Where and why do I have to put the “template” and “typename” keywords?
...iler doesn't need to know the meaning of a name in order to parse and basically know what action a line of code does. In C++, the above however can yield vastly different interpretations depending on what t means. If it's a type, then it will be a declaration of a pointer f. However if it's not a ty...
What's the advantage of a Java enum versus a class with public static final fields?
...ing to work more in Java. I expected to learn that enums in Java were basically equivalent to those in C# but apparently this is not the case. Initially I was excited to learn that Java enums could contain multiple pieces of data which seems very advantageous ( http://docs.oracle.com/javase/tutorial...
How do I read / convert an InputStream into a String in Java?
...
Marko Zajc
14811 silver badge1313 bronze badges
answered Nov 21 '08 at 16:54
Harry LimeHarry Lime
...
How do I make my string comparison case insensitive?
... Just be aware that the two solutions are not necessarily identical for all locales. String#equalsIgnoreCase is not using locale specific casing rules, while String#toLowerCase and #toUpperCase do.
– jarnbjo
Feb 8 '10 at 9:48
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