C语言数组

#include <stdio.h>int main(int argc, char * argv[]) {int i,j;//定义了数组长度为10,初始化了前五个元素,后五个元素为0int arr[10] = {1,2,3,4,5};//定义数组时,不指定数组的个数,则数组个数为初始化元素的个数int arr1[] = {1,2,3,4,5};//二维数组int a[2][3] = {{1,2,3}, {4,5,6}};int b[3][2];//字符数组,没有被初始化的元素自动定为空字符'/0'char ch[15] = {'H','e','l','l','o',' ','W','o','r','d','!'};//在C语言中,字符串是用字符数组来表示的,字符串用空字符'/0'作为字符串结束标志//系统会自动在字符串最后加一个'/0'作为字符串结束标志char str[10] = {"Hello"};char str1[10] = "Word!";for(i=0; i<10; i++){printf("%-2d", arr[i]);}printf("/n==============================/n");for(i=0; i<5; i++){printf("%-2d", arr1[i]);}printf("/n==============================/n");for(i=0; i<2; i++) {for(j=0; j<3; j++) {printf("%-5d",a[i][j]);b[j][i] = a[i][j];}printf("/n");}printf("==============================/n");for(i=0; i<3; i++) {for(j=0; j<2; j++) {printf("%-5d",b[i][j]);}printf("/n");}printf("==============================/n");for(i=0; i<15; i++){printf("%c", ch[i]);}printf("/n==============================/n");printf("%s %s/n", str, str1);return 0;}