<!DOCTYPE html> <html> <body> <h2>JavaScript String 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> let str = "Please locate where 'locate' occurs!"; document.getElementById("demo").innerHTML = str.search("locate"); </script> </body> </html>