将一个3×3阶矩阵转置，用一函数实现之。在主函数中用scanf函数输入矩阵元素，存放在数组中，以数组名作为函数实参。在主函数中输出已转置的矩阵-A 3 × 3 order matrix transpose, realized with a function. Scanf function used in the main function of the input matrix elements, stored in the array to the array name as the function arguments. Output in the main function has the matrix transpose