為什么我的按鈕點一下就消失了
<!DOCTYPE?html>
<html>
<head>
<meta?http-equiv="Content-Type"?content="text/html;?charset=utf-8"?/>
<title>Math?</title>
<script?type="text/javascript">
????function?myrandom()
????{
????????document.write(Math.round(Math.random()*10))
????}
????document.write(Math.round(Math.random()*10))
</script>
</head>
<body>
????<form>
????<input?type="button"?value="獲取隨機(jī)整數(shù)"?onclick="myrandom()">
????</form>
</body>
</html>
2017-09-07
<script?type="text/javascript"> ????function?myrandom() ????{ ????????alert(Math.round(Math.random()*10)); ????} </script>你把中間代碼換成這個，可能是由于document.write ?方法把按鈕覆蓋了吧！這種情況我也沒有遇到過，奇怪 奇怪?