<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>window对象的三种提示框</title>
<script type="text/javascript">
//确认框使用方法
function ww() {
var re = confirm("确认退出?");
if(re == true) {
alert("你选择了确定"); //提示框
} else {
alert("你选择了取消");
}
}
//ww();
//提示用户输入信息的框
var name = prompt("请输入名字","QQQ");//默认值是QQQ
alert(name); </script>
</head>
<body>
<a href="History对象.html">下去</a>
</body>
</html>
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aaarticlea/png;base64,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" alt="" />
注意:
JS的prompt()可以带两个参数,第一个为提示,第二个可以设置默认值。
用户输入之后如果点击取消返回值为null。
例如:
function updateBiaoduan(obj){
var projectName=$(obj).parent().parent().children("td:eq(1)").text();
var name = prompt("请输入标段名字",projectName);
if(name!=null){//点击确定
alert(name)
}
}