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liaogs 2001-09-05
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你看看sohu的得注册就知道了！
viking 2001-09-05
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<script language="javascript">
<!--
strcontent=theForm.txtcontent.value;
if(strcontent.length>0)
{
i=strcontent.indexOf("'");
if(i==-1)
{
window.alert("对不起！您输入的内容是错误地！")
//处理语句
//-->
</script>
如果检验双引号可能会麻烦一点,最好到服务器端验证,你先用这段代码试试吧!
www525 2001-09-05
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如下：
a=trim(request.form("a"))
a=replace(a,"'","''")
a=replace(a,"<","＜")
a=replace(a,">","＞")
a=trim(request.form("a"))
a=replace(a,"'","''")
a=replace(a,"<","＜")
a=replace(a,">","＞")
longyear 2001-09-05
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把字符一个个拿出来比较就行了！
wybm 2001-09-05
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<html>
<head>
<title>Untitled Document</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<script language="javascript">
<!--
String.prototype.Trim = function(){
return this.replace(/(^\s*)|(\s*$)/g, "");
}
function check(){
var StrValue=document.form1.str.value.Trim()
if(StrValue==""){
alert("Plese type in the string!")
document.form1.str.focus();
return false;
}
if (StrValue.indexOf("'")!=-1){
alert("The String is invalid");
document.form1.str.focus();
return false;
}
if (StrValue.indexOf('"')!=-1){
alert("The String is invalid");
document.form1.str.focus();
return false;
}
alert("All the best")
}
//-->
</script>
</head>
<body bgcolor="#FFFFFF" text="#000000">
<div align="center">
<form name="form1" method="post" action="">
<p>
<input type="text" name="str" size="40">
</p>
<p>
<input type="button" name="Button" value="Button" onclick="javascript:check()" style="cursor:hand">
</p>
</form>
</div>
</body>
</html>
<head>
<title>Untitled Document</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<script language="javascript">
<!--
String.prototype.Trim = function(){
return this.replace(/(^\s*)|(\s*$)/g, "");
}
function check(){
var StrValue=document.form1.str.value.Trim()
if(StrValue==""){
alert("Plese type in the string!")
document.form1.str.focus();
return false;
}
if (StrValue.indexOf("'")!=-1){
alert("The String is invalid");
document.form1.str.focus();
return false;
}
if (StrValue.indexOf('"')!=-1){
alert("The String is invalid");
document.form1.str.focus();
return false;
}
alert("All the best")
}
//-->
</script>
</head>
<body bgcolor="#FFFFFF" text="#000000">
<div align="center">
<form name="form1" method="post" action="">
<p>
<input type="text" name="str" size="40">
</p>
<p>
<input type="button" name="Button" value="Button" onclick="javascript:check()" style="cursor:hand">
</p>
</form>
</div>
</body>
</html>
7710703 2001-09-05
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www525兄说的是什么意思？双引号呢？
