31 lines
398 B
HTML
31 lines
398 B
HTML
<!DOCTYPE html>
|
|
<html lang="en">
|
|
<head>
|
|
<meta charset="UTF-8">
|
|
<title>10-字符串</title>
|
|
</head>
|
|
<body>
|
|
|
|
<script>
|
|
|
|
//方式一
|
|
var str1 =new String("abc");
|
|
//方式二
|
|
var str2="123";
|
|
var str3='123';
|
|
// alert(str2.length)
|
|
|
|
//trim():取出字符串两端的空白字符
|
|
var str4=" abc "
|
|
alert(1+str4.trim()+1);
|
|
|
|
|
|
|
|
|
|
</script>
|
|
|
|
|
|
|
|
|
|
</body>
|
|
</html> |