C和指针之二维字符串数组用指针数组、数组指针、二级指针打印

1、问题

2、测试代码

#include <stdio.h>

int main()
{

char value[4][5] = {"chen", "yu", "feng", "yy"};
char *p[5];
char (*p1)[5];
char **p2;

//把二位数组的值赋给指针数组
for (int i = 0; i < 4; i++)
{
printf("value[%d] is %s\n", i, value[i]);
p[i] = value[i];
}
for (int i = 0; i < 4; i++)
{
printf("p[%d] value is %s\n", i, p[i]);
}
//把value赋给数组指针
p1 = value;
for (int i = 0; i < 4; i++)
{
printf("value1 is %s\n", p1[i]);
printf("value2 is %s\n", *(p1 + i));
}
//把p赋值为二级指针
p2 = p;
for (int i = 0; i < 4; i++)
{
printf("value3 is %s\n", *(p2 + i));
}
return 0;
}

3、运行结果

1111deMacBook-Pro:dabian a1111$ vim array.c
1111deMacBook-Pro:dabian a1111$ gcc -g array.c -o array
1111deMacBook-Pro:dabian a1111$ ./array
value[0] is chen
value[1] is yu
value[2] is feng
value[3] is yy
p[0] value is chen
p[1] value is yu
p[2] value is feng
p[3] value is yy
value1 is chen
value2 is chen
value1 is yu
value2 is yu
value1 is feng
value2 is feng
value1 is yy
value2 is yy
value3 is chen
value3 is yu
value3 is feng
value3 is yy

4、总结