IE 兼容IEconsole引发的锚点问题
//IE 兼容IEconsole引发的锚点问题
var method;
var noop = function () {
};
var methods = ['assert', 'clear', 'count', 'debug', 'dir', 'dirxml', 'error', 'exception', 'group', 'groupCollapsed', 'groupEnd', 'info', 'log', 'markTimeline', 'profile', 'profileEnd', 'table', 'time', 'timeEnd', 'timeStamp', 'trace', 'warn'];
var length = methods.length;
var console = (window.console = window.console || {});
while (length--) {
method = methods[length];
if (!console[method]) {
console[method] = noop;
}
}