ȫһṩ̡̳ѧϰѧϰƽ̨
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| ҳıʾdzıԣͨʹWeb磺űԡؽӿڡȣԴǿҳıάWeb̵ĻҲ˵άǽڳı֮ϵġı֮ԳΪıԣΪıаνӡ㡣 ƪ¾ҴJavaScriptѧϰ֮ʲôַjsַ֪ʶܡһIJοֵҪѿԲοһ£ϣJavaScript ַ JavaScriptַڴ洢ʹı ַԴ洢һϵַ"HAHA" ַǿԲ뵽еκַʹõţҲʹ˫š 磺 <!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<span id="demo"></span>
<button onclick='this.innerHTML=Date()'>ʱ</button>
</body>
<script type="text/javascript">
var stringa = ""; var stringb = 'ã㻵û';
</script>
</html>ʹλַеÿַ <!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<span id="demo"></span>
<button onclick='this.innerHTML=Date()'>ʱ</button>
</body>
<script type="text/javascript">
var stringa = "";
var stringb = 'ã㻵û'; //ַͨеÿַ
alert(stringb[3]);
</script>
</html>ַеǴ0ʼģҲ˵һֵַ[0],ڶ[1],Դơ ַʹţַеŲҪַͬ 磺 <!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<span id="demo"></span>
<button onclick='this.innerHTML=Date()'>ʱ</button>
</body>
<script type="text/javascript">
var stringa = "'dd'";
var stringb = 'ã"㻵"û';
//ַͨеÿַ
alert(stringb[3]);
</script>
</html>Ҳַתַʹ \ תַ 磺 <!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<span id="demo"></span>
<button onclick='this.innerHTML=Date()'>ʱ</button>
</body>
<script type="text/javascript">
var stringa = "\'dd\'";
var stringb = 'ã\"㻵\"û';
//ַͨеÿַ
alert(stringb[3]);
</script>
</html>ַ ʹ length ַijȣ 磺 <!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<span id="demo"></span>
<button onclick='this.innerHTML=Date()'>ʱ</button>
</body>
<script type="text/javascript">
var stringa = "\'dd\'";
var stringb = 'ã\"㻵\"û';
//ַͨеÿַ
alert(stringb.length);//鿴ַstringbij
</script>
</html>ַ JavaScriptַдڵŻ˫С ҪȻַ _ "۹""ôô" ôأʹתַͺˣ_ "۹\"\"ôô" \ תַǽַתΪַַϸ±
ַǶ ͨJavaScriptַԭʼֵʹַvar aa= "AA"; ҲʹnewؼַֽΪһvar stringaa = new String("Ȼ"); һ㲻鴴StringӰִٶȣܲӰ졣 磺 var aa = "AA";
var bb = new String("AA");
alert(aa === bb); //ֵfalse Ϊ aaַ bb ǶַԺͷ ԭʼֵַûԺͷΪDzǶ ԭʼֵַʹJavaScriptԺͷΪJavaScriptִзʱԭʼֵ ַ
ַ
ܽϾDZƪĵȫݣϣܶԴҵѧϰؽ̳JavaScriptƵ̳jQueryƵ̳bootstrap̳ ϾJavaScriptѧϰ֮ʲôַjsַ֪ʶܵϸݣעphp£ վһͬļܺѧʹõάվ | ||
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