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@@ -0,0 +1,22 @@
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+<!DOCTYPE html>
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+<html lang="en">
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+<head>
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+ <meta charset="UTF-8">
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+ <meta name="viewport" content="width=device-width, initial-scale=1.0">
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+ <title>Document</title>
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+</head>
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+<body>
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+ <script>
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+ // const 名称 = /需要校验的规则/
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+ // test 匹配文本中是否包含要校验的字符 返回布尔值
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+ // replace 替换指定字符
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+ const reg = /西游记/g;
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+ const str = '西游记是四大名著,西游记';
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+ console.log(reg.test("红楼梦是四大名著"));
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+ console.log(reg.exec(str),'exec');
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+ console.log(str.replace(reg,'水浒传'));
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+ console.log(str.match(reg),'match')
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+
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+ </script>
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+</body>
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+</html>
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zheng