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<!DOCTYPE html> <html> <body> <h2>JavaScript 字符串方法</h2> <p>search() 方法返回指定文本在字符串中第一次出现的位置：</p> <p id="demo"></p> <script> var str = "Please locate where 'locate' occurs!"; var pos = str.search("locate"); document.getElementById("demo").innerHTML = pos; </script> </body> </html>