摘要：任务四 #include <stdio.h> #include <stdlib.h> int main() { FILE* fp; int i = 0; char ch; fp = fopen_s(&fp,"data4.txt", "r"); if (fp == NULL) { printf("fa 阅读全文

摘要：任务四 #include <stdio.h> #include <string.h> #define N 100 typedef struct { char num[10]; int s1, s2; double sum; char level[10]; } STU; int fun(STU a[] 阅读全文