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JavaScript学习笔记之定时器_基础知识

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Release： 2016-05-16 16:18:35
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定时器1

　　用以指定在一段特定的时间后执行某段程序。

　　setTimeout()：

　　格式：[定时器对象名=] setTimeout(“”，毫秒)

　　功能：执行一次。

　　例子：

复制代码代码如下:




timer1.html










定时器2

　　以一定的时间为间隔，不断地重复执行表达式。

　　setInterval()：

　　格式：[定时器对象名=] setInterval(“”，毫秒)

　　功能：重复执行，直至窗口、框架被关闭或执行clearInterval。

　　clearInterval()：

　　格式：clearInterval(定时器对象名)　　

　　功能：终止定时器

　　例子：

复制代码代码如下:




timer2.html







0



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