IE8下提示'console'未定义错误

解决办法：1、打开开发人员调试工具(F12)
                   2、注释掉该代码
                   3、或者加入如下代码
[javascript] view plaincopy
window.console = window.console || (function(){  
    var c = {}; c.log = c.warn = c.debug = c.info = c.error = c.time = c.dir = c.profile  
    = c.clear = c.exception = c.trace = c.assert = function(){};  
    return c;  
})();