<!DOCTYPE html> <html> <body> <p>请单击按钮,对字符串中的“(www.sou-xun.com)”进行不区分大小写的搜索。</p> <button onclick="myFunction()">试一试</button> <p id="demo"></p> <script> function myFunction() { var str = "Visit (www.sou-xun.com)"; var patt1 = /(www.sou-xun.com)/i; var result = str.match(patt1); document.getElementById("demo").innerHTML = result; } </script> </body> </html>