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  • js自建readAsBinaryString方法

    if (typeof(FileReader.prototype.readAsBinaryString) !== "function") {
        FileReader.prototype.readAsBinaryString = function (fileData) {
            var binary = "";
            var pt = this;
            var reader = new FileReader();
            reader.onload = function (e) {
                var bytes = new Uint8Array(reader.result);
                var length = bytes.byteLength;
                for (var i = 0; i < length; i++) {
                    binary += String.fromCharCode(bytes[i]);
                }
                var obj = {};
                obj.target = {result: binary};
                pt.onload(obj);
            }
            reader.readAsArrayBuffer(fileData);
        }
    }

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  • 原文地址:https://www.cnblogs.com/zdlblogs/p/6297516.html
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