[Discuz] DZX3.4手机版上传图片被过压缩模糊修改方法

if(imgwidth/imgheight <= canvaswidth/canvasheight && imgheight >= canvasheight) {
    newheight = canvasheight;
    newwidth = Math.ceil(canvasheight/imgheight*imgwidth);
} else if(imgwidth/imgheight > canvaswidth/canvasheight && imgwidth >= canvaswidth) {
    newwidth = canvaswidth;
    newheight = Math.ceil(canvaswidth/imgwidth*imgheight);
}

var maxheight = 500;
     var maxwidth = 500;

var maxheight = 1000;
     var maxwidth = 3000;

var newdataurl = canvas.toDataURL(s.files[0].type).replace(/data:.+;base64,/, ”);

var newdataurl = canvas.toDataURL(s.files[0].type,1.0).replace(/data:.+;base64,/, ”);