1.警告框
<html>
<head>
<script
type=
"text/javascript"
>
function
disp_alert()
{
alert(
"我是警告框!!"
)
}
</script>
</head>
<body>
<input
type=
"button"
onclick=
"disp_alert()"
value=
"显示警告框"
/>
</body>
</html>
2.确定取消框
<html>
<head>
<script
type=
"text/javascript"
>
function
disp_confirm()
{
var
r=confirm(
"按下按钮"
)
if
(r==
true
)
{
document.write(
"您按了确认!"
)
}
else
{
document.write(
"您按了取消!"
)
}
}
</script>
</head>
<body>
<input
type=
"button"
onclick=
"disp_confirm()"
value=
"显示确认框"
/>
</body>
</html>
3.有输入的框
<html>
<head>
<script
type=
"text/javascript"
>
function
disp_prompt()
{
var
name=prompt(
"请输入您的名字"
,
"Bill
Gates"
)
if
(name!=
null
&&
name!=
""
)
{
document.write(
"你好!"
+
name +
"
今天过得怎么样?"
)
}
}
</script>
</head>
<body>
<input
type=
"button"
onclick=
"disp_prompt()"
value=
"显示提示框"
/>
</body>
</html>