<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> <style> .g{ background-color: #cccccc; color: #000; text-align: center; font-size: 60px; } </style> </head> <body> <div class='g' id="1"> 来呀~造作呀 </div> <script> setInterval( function (){ d=document.getElementById('1'); d_text=d.innerText; sub_char=d_text.slice(1,d_text.length); first_char=d_text[0]; new_str=sub_char+first_char; d.innerText=new_str },300); // li=[11,22,33,44] // for(var l=1;l<10;l++){ // console.log(l) // } //面向对象 prototype 原型 function Fc(name,words) { this.Name =name; this.Words =words; } Fc.prototype={ G: function () { return this.Name+this.Words } }; a=new Fc('jiji','gogogogoge'); ret=a.G(); console.log(ret) </script> </body> </html>