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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>
 
-         // 修饰符
 
-         // i 不区分大小写
 
-         // g 全局匹配
 
-         const reg = /hi/gi;
 
-         console.log(reg.test("hello,haha,iloHi")) 
 
-         const str = 'hI, an Orange, HI, an Apple';
 
-         console.log(str.match(reg));
 
-     </script>
 
- </body>
 
- </html>
 
 
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