编写应用程序，定义一个5行3列的二维数组，给数组的每个元素赋10~100之间的随机值，显示二维数组每行的元素，并输出所有元素的和。-Build applications, define a five line 3 two dimensional array of gilead, to an array of each element fu between 10 to 100 random value, shows a 2 d array of each line of elements, and the output of all elements and.