JavaScript中confirm,alert,prompt的用法
本文简要介绍JavaScript中confirm,alert,prompt的用法,希望大家学习过程中能得到一些启发。
window.confirm 参数就只有一个。显示提示框的信息。按确定,返回true；按取消返回false。
< SCRIPT> var bln = window.confirm("确定吗?"); alert(bln) < /SCRIPT> window.alert参数，只有一个，显示警告框的信息；无返回值。
< SCRIPT> window.alert("确定。") window.prompt参数,有两个，第一个参数，显示提示输入框的信息。第二个参数,用于显示输入框的默认值。返回，用户输入的值。
< SCRIPT> var str = window.prompt("请输入密码","password") alert(str); < /SCRIPT>
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*删除左右两端的空格
*/
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