用c 语言编写程序:根据输入的年、月、日,求出该日是这一年中的第几天...答:没有判断输入不合常识的情况 include<stdio.h> include<string.h> include<stdlib.h> int main(){ int a[12] = {31,28,31,30,31,30,31,31,30,31,30,31};printf("请输入年月日(YYYY-MM-DD):");char s[11] = {'\0'},year[5] = {'\0'},month[3] = {'\0'},day[3] ...