<!DOCTYPE HTML> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <title>计时器</title> <script type="text/javascript"> function clock(){ var time=new Date(); document.getElementById("clock").value = time; } var i=setIterval("clock()",1000); function str(){ i=setIterval("clock()",1000) } </script> </head> <body> <form> <input type="text" id="clock" size="50" /> <input type="button" value="暂停" onclick="clearInterval(i)" /> <input type="button" value="开始" onclick="str()" /> </form> </body> </html>
var i=setIterval("clock()",1000);
function str(){
i=setIterval("clock()",1000)
你的代码都敲错了 应该是setInterval