missingusestrictstatement第三行报错？？

更新时间2018-12-20 04:40:13

window.onload = rolloverInit; 

 

function rolloverInit(){

  for(var i=0;i<document.images.length;i++)

  {

    if(document.Images[i].parentNode.tagName === "A"){

      setupRollover(document.Images[i]);

    }

  }

}

 

function setupRollover(thisImage){

  thisImage.outImage = new Image();

  thisImage.outImage.src = thisImage.src;

  thisImage.onmouseout = function(){

    this.src = this.outImage.src;

  }

 

  thisImage.overImage = new Image();

  thisImage.overImage.src = "Images/" + thisImage.id + "_on.gif";

  thisImage.onmouseover = function(){

    this.src = thisImage.overImage.src;

  }

}

缺少"use strict”的声明，严格模式。

你在你书写的代码文件开头添加就好了；

会不会是语法错误。