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#2
changjiang652014-11-04 17:28
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程序代码：<script type="text/javascript">
function Check(){
var str1 = "I like red and black";
var str2 = "she likes black";
var r = /black/;
var reg = new RegExp(r);
if(reg.test(str1)==true){
alert("包含！");
}
}
</script>
</head>
<body>
请输入数字：<input type="text" id="t1" />
<input type="button" value="验证" onclick="Check()" />
</body>
</html>
这道题是让判断两个字符串中是否包含单词black，可是结果却是不管往文本框里输入什么都会弹出提示框，不知道错在哪里了，求大神解决 function Check(){
var str1 = "I like red and black";
var str2 = "she likes black";
var r = /black/;
var reg = new RegExp(r);
if(reg.test(str1)==true){
alert("包含！");
}
}
</script>
</head>
<body>
请输入数字：<input type="text" id="t1" />
<input type="button" value="验证" onclick="Check()" />
</body>
</html>