1. 编程实现：用户输入身份证号，输出您的生日是***年***月***日c语言

#include <stdio.h>
#include <string.h>

int main() {
char id[19];
printf("请输入您的身份证号：");
scanf("%s", id);
char year[5], month[3], day[3];
strncpy(year, id+6, 4);
year[4] = '\0';
strncpy(month, id+10, 2);
month[2] = '\0';
strncpy(day, id+12, 2);
day[2] = '\0';
printf("您的生日是%s年%s月%s日\n", year, month, day);
return 0;
}