W3School TIY Editor
W3School 在线教程
改变方向
暗黑模式
运行代码
<!DOCTYPE html> <html> <body> <p>单击按钮以全局搜索“l”，后跟零个或多个“o”字符。</p> <button onclick="myFunction()">试一试</button> <p id="demo"></p> <script> function myFunction() { var str = "Hellooo World! Hello W3School!"; var patt1 = /lo*/g; var result = str.match(patt1); document.getElementById("demo").innerHTML = result; } </script> </body> </html>