二维数组 组合方案

[
　　["160514110637d4800f000005"],
　　["160514110639d4800f000009","160514110639d4800f00000a","160514110639d4800f00000b"],
　　["160514110639d4800f00000d","160514110639d4800f00000e","160514110639d4800f00000f"]
]

 function doExchange(doubleArrays, fgf) {
            /// <summary>
            /// 二维数组 组合方案
            /// </summary>
            /// <param name="doubleArrays" type="type">二维数组</param>
            /// <param name="fgf" type="type">分隔符</param>
            /// <returns type=""></returns>
            if (fgf == undefined) fgf = ",";
            var len = doubleArrays.length;
            if (len >= 2) {
                var len1 = doubleArrays[0].length;
                var len2 = doubleArrays[1].length;
                var newlen = len1 * len2;
                var temp = new Array(newlen);
                var index = 0;
                for (var i = 0; i < len1; i++) {
                    for (var j = 0; j < len2; j++) {
                        temp[index] = doubleArrays[0][i] + fgf + doubleArrays[1][j];
                        index++;
                    }
                }
                var newArray = new Array(len - 1);
                if (len > 2) {
                    newArray[1] = doubleArrays[2];
                }
                newArray[0] = temp;
                return doExchange(newArray, fgf);
            }
            else {
                return doubleArrays[0];
            }
        }

[
　　"160514110637d4800f000005,160514110639d4800f000009,160514110639d4800f00000d",
　　"160514110637d4800f000005,160514110639d4800f000009,160514110639d4800f00000e",
　　"160514110637d4800f000005,160514110639d4800f000009,160514110639d4800f00000f",
　　"160514110637d4800f000005,160514110639d4800f00000a,160514110639d4800f00000d",
　　"160514110637d4800f000005,160514110639d4800f00000a,160514110639d4800f00000e",
　　"160514110637d4800f000005,160514110639d4800f00000a,160514110639d4800f00000f",
　　"160514110637d4800f000005,160514110639d4800f00000b,160514110639d4800f00000d",
　　"160514110637d4800f000005,160514110639d4800f00000b,160514110639d4800f00000e",
　　"160514110637d4800f000005,160514110639d4800f00000b,160514110639d4800f00000f"
]