点击运行
<!DOCTYPE html> <html> <body> <h2>JavaScript 正则表达式</h2> <p>检索下面段落中的一个 "e"：</p> <p id="p01">The best things in life are free!</p> <p id="demo"></p> <script> text = document.getElementById("p01").innerHTML; document.getElementById("demo").innerHTML = /e/.test(text); </script> </body> </html>
运行结果
