//source是源字符串,desc是目的字符串
//字符串从源字符串拷贝到目的字符串
void silence_strcpy(char *desc, char *source){
//养成一个好习惯,判断主调函数分配的内存是否为空
if (desc == NULL || source == NULL) { printf("desc == NULL || source == NULL\n"); } //下面是2中方法从源字符串拷贝到目标字符串的方法 /* while ((*desc = *source)) { desc++; source++; if (*source == '\0') break; } */ //拷贝字符串 while ((*desc++ = *source++) != '\0') { ; } //*desc = '\0'; } int main() { char source[100]; char desc[100]; //当输入字符串"end"时程序退出 while(1) { printf("please enter you string "); scanf("%s", source); if (strncmp(source, "end", 3) == 0) break; silence_strcpy(desc, source);printf("desc: %s\n", desc);
//养成一种好习惯,把数组清空
memset(source, 0, sizeof(100)); memset(desc, 0, sizeof(100)); } return EXIT_SUCCESS; }