1、掌握数组的定义、初始化与使用。初始化5X5的二维int类型数组，并将其转置（转置后数组的第i行，第j列的元素应该和原数组的第j行第i列的内容相同）-A grasp of the array definition, initialization and use. Array initialization 5X5 two-dimensional type int, and array transpose (transpose the i th row, j-th column element s