<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <title>Document</title> </head> <body> <div> <button onclick="pot1()">点击</button> <p>Paul,Paula,Pauline,paul,Paul</p> <p id="pot">Paul,Paula,Pauline,paul,Paul</p> <script type="text/javascript"> function pot1(){ var str="Paul,Paula,Pauline,paul,Paul"; var text=str.replace(/Paul/g,"Ringo"); document.getElementById("pot").innerHTML=text; } </script> </div> </body> </html>