C语言实例39：字符串指针

#include <stdio.h>
#include <stdlib.h>

int main(int argc, char *argv[])
{
    int i;
    char a[] = "I am a student.";
    char b[20];
    char *p1, *p2;

    p1 = a;
    p2 = b;

    for(; *p1 != '\0'; p1++, p2++)
        *p2 = *p1;
    *p2 = '\0';

    printf("string a is: %s\n", a);
    printf("string b is: ");
    for(i = 0; b[i] != '\0'; i++)
        printf("%c", b[i]);
    printf("\n");


    system("pause");
    return 0;
}