#include<stdio.h>
#include<string.h>
void printByInt(char c[], int count){
int i;
printf("**");
for(i = 0; i < count; i++){
printf("%d ", c[i]);
}
printf("**");
printf("\n");
}
void printByChar(char c[], int count){
int i;
printf("**");
for(i = 0; i < count; i++){
printf("%c ", c[i]);
}
printf("**\n");
}
void main(void){
char c1[4] = {'A', 'B', 'C', '0'}; //不是字符串
char c2[5] = {'A', 'B', 'C', '0', 0};
char c3[5] = {'A', 'B', 'C', '0', '\0'};
char c4[5] = {'A', 'B', 'C', '0'};
char c5[ ] = {'A', 'B', 'C', '0'}; //不是字符串
char c6[5] = "ABC0";
char c7[10] = "ABC0";
char c8[4] = "ABC0"; //不是字符串
char c9[ ] = "ABC0";
//2 3 4 6 完全等价
printf("output by char:\n");
printf("c1 "); printByChar(c1, sizeof(c1));
printf("c2 "); printByChar(c2, sizeof(c2));
printf("c3 "); printByChar(c3, sizeof(c3));
printf("c4 "); printByChar(c4, sizeof(c4));
printf("c5 "); printByChar(c5, sizeof(c5));
printf("c6 "); printByChar(c6, sizeof(c6));
printf("c7 "); printByChar(c7, sizeof(c7));
printf("c8 "); printByChar(c8, sizeof(c8));
printf("c9 "); printByChar(c9, sizeof(c9));
printf("\n");
printf("output by int:\n");
printf("c1 "); printByInt(c1, sizeof(c1));
printf("c2 "); printByInt(c2, sizeof(c2));
printf("c3 "); printByInt(c3, sizeof(c3));
printf("c4 "); printByInt(c4, sizeof(c4));
printf("c5 "); printByInt(c5, sizeof(c5));
printf("c6 "); printByInt(c6, sizeof(c6));
printf("c7 "); printByInt(c7, sizeof(c7));
printf("c8 "); printByInt(c8, sizeof(c8));
printf("c9 "); printByInt(c9, sizeof(c9));
printf("\n");
printf("sizeof(c1) = %-2d, strlen(c1) = %d \n", sizeof(c1), strlen(c1));
printf("sizeof(c2) = %-2d, strlen(c2) = %d \n", sizeof(c2), strlen(c2));
printf("sizeof(c3) = %-2d, strlen(c3) = %d \n", sizeof(c3), strlen(c3));
printf("sizeof(c4) = %-2d, strlen(c4) = %d \n", sizeof(c4), strlen(c4));
printf("sizeof(c5) = %-2d, strlen(c5) = %d \n", sizeof(c5), strlen(c5));
printf("sizeof(c6) = %-2d, strlen(c6) = %d \n", sizeof(c6), strlen(c6));
printf("sizeof(c7) = %-2d, strlen(c7) = %d \n", sizeof(c7), strlen(c7));
printf("sizeof(c8) = %-2d, strlen(c8) = %d \n", sizeof(c8), strlen(c8));
printf("sizeof(c9) = %-2d, strlen(c9) = %d \n", sizeof(c9), strlen(c9));
}
