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detectZoom:function(){
var ratio=0,
screen=window.screen,
ua=navigator.userAgent.toLowerCase();
if(ua.indexOf('firefox') > -1){
if(window.devicePixelRatio!==undefined){
ratio=window.devicePixelRatio;
}
}else if(ua.indexOf('msie') > -1){
if(screen.deviceXDPI&&screen.logicalXDPI){
ratio=screen.deviceXDPI/screen.logicalXDPI;
}
}else if(window.outerWidth!==undefined&&window.innerWidth!==undefined){
ratio=window.outerWidth/window.innerWidth;
}
return ratio;
}
var detectZoom=function(){
var ratio=0,
screen=window.screen,
ua=navigator.userAgent.toLowerCase();
if(~ua.indexOf('firefox')){
if(window.devicePixelRatio!==undefined){
ratio=window.devicePixelRatio
}
}else if(~ua.indexOf('msie')){
if(screen.deviceXDPI&&screen.logicalXDPI){
ratio=screen.deviceXDPI/screen.logicalXDPI
}
}else if(window.outerWidth!==undefined&&window.innerWidth!==undefined){
ratio=window.outerWidth/window.innerWidth
};
if(ratio){
ratio=Math.round(ratio*100)
};
if(ratio===99||ratio===101){
ratio=100
};
return ratio
}
还真给我找到了