我写了一小段代码来测试指针数组是否按预期工作.然后我得到了这个有线结果 - 在第三个指针赋值之后,指针数组都指向最后一个字符串.谁能解释发生了什么?谢谢.
#include <string.h>
#include <stdio.h>
main() {
char *pstr[10];
char p[10];
char *s1 = "morning";
char s2[10] = {'h','e','l','l','o'};
char s3[10] = {'g','o','o','d'};
int i = 0;
strcpy(p, s1);
pstr[0] = p;
printf("%s\n", pstr[0]);
strcpy(p, s2);
pstr[1] = p;
printf("%s\n", pstr[1]);
strcpy(p, s3);
pstr[2] = p;
printf("%s\n", pstr[2]);
for (i = 0; i < 3; i++)
printf("%s\n", pstr[i]);
}
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该程序的输出是:
morning
hello
good
good
good
good
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