lovecoding
/
VIP32


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
        const reg = /西游记/g;
        // 1.test()
        const result = reg.test("这是一本西游ddd记");
        console.log(result);
        // 2.exec()
        const result1 = reg.exec("这是一本西游记，西游记");
        console.log(result1);
        // 3.replace()
        var str = '一段西游记的文字';
        const result2 = str.replace(reg,'红楼梦');
        console.log(result2);
        // 4.match()
        var str1 = '一本书西游记，我也爱看西游记,西游记呀';
        const result3 = str1.match(reg);
        console.log(result3);

    </script>
</body>
</html>