一道java编程题：有一矩阵：a b c d e f g h i j k l m n o p q r 转变成：a g m

public class T1 { public static void main(String[] args) { char a[][] = {{'a','b','c','d','e','f'},{'g','h','i','j','k','l'},{'m','n','o','p','q','r'}}; char b[][] = new char[3][4]; for(int j = 0; j < 4; j++){ for(int i=0;i<3;i++){ b[i][j] = a[i][j]; System.out.print(b[i][j]); } System.out.println(); } } } 运行结果： a g m b h n c i o d j p 哦，把我前面那回答的两个for循环嵌套换下位置就行了，希望对你有用！