矩阵转置：

1、任意输入一个一维字符数组，其中元素个数为一个正整数N的平方

2、这个一维数组可以当成一个N*N的矩阵，将这个矩阵转置

3、将转置后的矩阵按行依次组成一维数组，再将这个一维数组输出-Matrix transpose: 1, enter an arbitrary one-dimensional array of characters, which is the square of the number of elements of a positive integer N 2, this can be used as a one-dimensional array of N* N matrix, and this matrix transpose 3, will transpose After the composition of the matrix followed by a one-dimensional array of rows, then this one-dimensional array output