2019-07-25获取本地上传图片的url

 function getObjectURL(file) {
        var url = null
        if (window.createObjectURL != undefined) { // basic  
            url = window.createObjectURL(file)
        } else if (window.URL != undefined) { // mozilla(firefox)  
            url = window.URL.createObjectURL(file)
        } else if (window.webkitURL != undefined) { // webkit or chrome  
            url = window.webkitURL.createObjectURL(file)
        }
        return url;
    }
    $(" input").change(function () {
        var objUrl = getObjectURL(this.files[0]);
        var size = this.files[0].size;
        if (size >= 1024000 * 10) bottomTip("图片超过10M了哦", 0);
        else {
            if (objUrl) {
                console.log(objUrl)//最后的url
            }
        }
    })