c - 我无法让我的C程序输出到文件

Question

我有这个程序，我不知道如何使它输出到我声明的csis.txt文件中。我觉得它很简单，但是我似乎无法弄清楚。我已经尽了一切努力，但仍然无法破解代码。

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define MAX 100

FILE *csis;

typedef struct employees{
   char first[8];
   char initial[2];
   char last[10];
   char street[17];
   char city[12];
   char state[3];
   char zip[6];
   int age[4];
   char sex[2];
   int tenure[4];
   double salary[10];
} Employee;

void strsub(char buf[], char sub[], int start, int end);
int readEmployees(Employee list[]);
void displayEmployees(Employee list[], int maxWorkers);
void maleEmployees(Employee list[], int maxWorkers);
void highestWoman(Employee list[], int maxWorkers);
void lowestMan(Employee list[], int maxWorkers);
double averageSalary(Employee list[], int maxWorkers);
void belowAvgWomen(Employee list[], int maxWorkers, double avgSalary);
void maleSalaryRatio(Employee list[], int maxWorkers, double avgSalary);
void specialEmployee(Employee list[], int maxWorkers);
void poorEmployee(Employee list[], int maxWorkers);
void zipCode(Employee list[], Employee temp[], int maxWorkers);

int main(void) {

csis = fopen("csis.txt", "w");

int maxWorkers;
double avgSalary = 0.00;

Employee myWorkers[MAX];
Employee temp[MAX];

maxWorkers = readEmployees(myWorkers);
displayEmployees(myWorkers, maxWorkers);
maleEmployees(myWorkers, maxWorkers);
highestWoman(myWorkers, maxWorkers);
lowestMan(myWorkers, maxWorkers);
avgSalary = averageSalary(myWorkers, maxWorkers);
belowAvgWomen(myWorkers, maxWorkers, avgSalary);
maleSalaryRatio(myWorkers, maxWorkers, avgSalary);
specialEmployee(myWorkers, maxWorkers);
poorEmployee(myWorkers, maxWorkers);
zipCode(myWorkers, temp, maxWorkers);

getchar();

return 0;
}

void strsub(char buf[], char sub[], int start, int end) {
   int i, j;
   for (j = 0, i = start; i <= end; i++, j++) {
   sub[j] = buf[i];
}
   sub[j] = '\0';
}

int readEmployees(Employee list[]) {
   char buf[MAX];

   FILE *fp;
   if (!(fp = fopen("payfile.txt", "r"))) {
       printf("payfile.txt could not be opened for input.");
       getchar();
       exit(1);
   }

   int i = 0;
   while (!feof(fp)) {
       fgets(buf, MAX, fp);
       strsub(buf, list[i].first, 0, 6);
       strsub(buf, list[i].initial, 8, 8);
       strsub(buf, list[i].last, 10, 18);
       strsub(buf, list[i].street, 20, 35);
       strsub(buf, list[i].city, 37, 46);
       strsub(buf, list[i].state, 48, 49);
       strsub(buf, list[i].zip, 50, 55);
       strsub(buf, (char *) list[i].age, 57, 58);
       *list[i].age = atoi((char *) list[i].age);
       strsub(buf, list[i].sex, 60, 61);
       strsub(buf, (char *) list[i].tenure, 62, 62);
       *list[i].tenure = atoi((char *) list[i].tenure);
       strsub(buf, (char *) list[i].salary, 63, 69);
       *list[i].salary = atof((char *) list[i].salary);
       i++;
   }

   fclose(fp);
   return i;
}

void displayEmployees(Employee list[], int maxWorkers) {
int i = 0;

printf("EMPLOYEE LIST:\n");
fprintf(csis, "EMPLOYEE LIST:\n");
printf("--------------\n");
fprintf(csis, "--------------\n");
printf("Full Name %9c Street %10c City %8c State %2c Zip %4c Age %c M/F %c Tenure %c Salary\n",
   ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ');
fprintf(csis, "Full Name %9c Street %10c City %8c State %2c Zip %4c Age %c M/F %c Tenure %c Salary\n",
   ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ');

while (i < maxWorkers) {
   printf("%7s %1s %9s %16s %11s %5s %4c %s %5d %2c %3s %3d Years %7.2lf\n", list[i].first, list[i].initial,
       list[i].last, list[i].street, list[i].city, list[i].state, ' ',
       list[i].zip, *list[i].age, ' ', list[i].sex, *list[i].tenure, *list[i].salary);
   fprintf(csis, "%7s %1s %9s %16s %11s %5s %4c %s %5d %2c %3s %3d Years %7.2lf\n", list[i].first, list[i].initial,
       list[i].last, list[i].street, list[i].city, list[i].state, ' ',
       list[i].zip, *list[i].age, ' ', list[i].sex, *list[i].tenure, *list[i].salary);
   i++;
  }
}

void maleEmployees(Employee list[], int maxWorkers) {
int i, j;
char m[] = "M";

printf("\nMale Workers\n");
fprintf(csis, "\nMale Workers\n");
printf("------------\n");
fprintf(csis, "------------\n");

i = 0;
while (i < maxWorkers) {
    j = (strcmp(list[i].sex, m));
    if (j > 0) {
       printf("%s %s\n", list[i].first, list[i].last);
       fprintf(csis, "%s %s\n", list[i].first, list[i].last);
    }
    i++;
  }
}

void highestWoman(Employee list[], int maxWorkers) {
    int i, j, k;
    double salary;
    char m[] = "M";

i = 0;
salary = 0.00;
while (i < maxWorkers) {
   j = (strcmp(list[i].sex, m));
   if ((j < 0) && (*list[i].salary >= salary)) {
       salary = *list[i].salary;
       k = i;
       //printf("%.2lf\n", salary);
   }
   i++;
}
printf("\nHighest Paid Woman\n");
fprintf(csis, "\nHighest Paid Woman\n");
printf("------------------\n");
fprintf(csis, "------------------\n");
printf("%s %s \n", list[k].first, list[k].last);
fprintf(csis, "%s %s \n", list[k].first, list[k].last);
}

void lowestMan(Employee list[], int maxWorkers) {
int i, j, k, initialFlag;
double salary;
char m[] = "M";

initialFlag = 0;
for (i = 0; i < maxWorkers; i++) {
   j = (strcmp(list[i].sex, m));
   if ((j > 0) && (initialFlag == 0)) {
       salary = *list[i].salary;
       k = i;
       initialFlag = 1;
   }
   else if ((j > 0) && (initialFlag == 1) && (*list[i].salary < salary)) {
       salary = *list[i].salary;
       k = i;
   }
   else
       ;
}
printf("\nLowest Paid Man\n");
fprintf(csis, "\nLowest Paid Man\n");
printf("---------------\n");
fprintf(csis, "---------------\n");
printf("%s %s \n", list[k].first, list[k].last);
fprintf(csis, "%s %s \n", list[k].first, list[k].last);
}

double averageSalary(Employee list[], int maxWorkers) {
int i;
double salary = 0.00, totalAverage;

printf("\nAverage Salary\n");
fprintf(csis, "\nAverage Salary\n");
printf("--------------\n");
fprintf(csis, "--------------\n");

i = 0;
while (i < maxWorkers) {
   salary += *list[i].salary;
   i++;
}
totalAverage = (salary / (double)maxWorkers);
printf("%.2lf\n", totalAverage);

return totalAverage;
}

void belowAvgWomen(Employee list[], int maxWorkers, double avgSalary) {
int i, j;
char m[] = "M";

printf("\nWomen Below Average Salary\n");
fprintf(csis, "\nWomen Below Average Salary\n");
printf("--------------------------\n");
fprintf(csis, "--------------------------\n");

i = 0;
while (i < maxWorkers) {
   j = (strcmp(list[i].sex, m));
   if ((j < 0) && (*list[i].salary < avgSalary)) {
       printf("%s %s\n", list[i].first, list[i].last);
   }
   i++;
    }

 }

void maleSalaryRatio(Employee list[], int maxWorkers, double avgSalary) {
int i, j;
double above, below, ratio;
char m[] = "M";

printf("\nMale Workers\n");
fprintf(csis, "\nMale Workers\n");
printf("------------\n");
fprintf(csis, "------------\n");

i = 0;
above = 0.0;
below = 0.0;
ratio = 0.0;
while (i < maxWorkers) {
   j = (strcmp(list[i].sex, m));
   if ((j > 0) && (*list[i].salary > avgSalary)) {
       above += 1.0;
   }
   if ((j > 0) && (*list[i].salary <= avgSalary)) {
       below += 1.0;
   }
   i++;
}

if (below > above) {
   ratio = below / above;
   printf("Ratio is %.2lf below average to 1 above average\n", ratio);
   fprintf(csis, "Ratio is %.2lf below average to 1 above average\n", ratio);
}
else if (below < above) {
   ratio = above / below;
   printf("Ratio is %.2lf above average to 1 below average\n", ratio);
   fprintf(csis, "Ratio is %.2lf above average to 1 below average\n", ratio);
}
else {
   printf("Ratio is 1 above to 1 below.");
   fprintf(csis, "Ratio is 1 above to 1 below.");
}

printf("Below Average: %.2lf\n", below);
fprintf(csis, "Below Average: %.2lf\n", below);

printf("Above Average: %.2lf\n", above);
fprintf(csis, "Above Average: %.2lf\n", above);
}


void specialEmployee(Employee list[], int maxWorkers) {
   int i;
   double expensiveSalary = 35000.00;
   int veteranEmployee = 5;
   int notYoungAnymore = 30;

   printf("\nThese Employees are Special:\n");
   fprintf(csis, "\nThese Employees are Special:\n");

   printf("----------------------------\n");
   fprintf(csis, "----------------------------\n");

   i = 0;
   while (i < maxWorkers) {
       if ((*list[i].salary * 52) >= expensiveSalary){
           if ((*list[i].tenure) >= veteranEmployee) {
               if ((*list[i].age) >= notYoungAnymore) {
                   printf("%s %s\n", list[i].first, list[i].last);
                   fprintf(csis, "%s %s\n", list[i].first, list[i].last);
               }
           }
       }
       i++;
   }
}

void poorEmployee(Employee list[], int maxWorkers) {
   int i;
   double poorSalary = 350.00;
   double raisePercent = 0.10;

   printf("\nThese Employees are receiving a %.2lf percent raise:\n", raisePercent * 100);
   fprintf(csis, "\nThese Employees are receiving a %.2lf percent raise:\n", raisePercent * 100);
   printf("----------------------------------------------------\n");
   fprintf(csis, "----------------------------------------------------\n");

   i = 0;
   while (i < maxWorkers) {
       if ((*list[i].salary) <= poorSalary) {
           *list[i].salary += (*list[i].salary) * (raisePercent);
           printf("%s %s New Salary: %.2lf\n", list[i].first, list[i].last, *list[i].salary);
           fprintf(csis, "%s %s New Salary: %.2lf\n", list[i].first, list[i].last, *list[i].salary);
       }
       i++;
   }

}

void zipCode(Employee list[], Employee temp[], int maxWorkers) {
   int i, j;

   printf("\nZip Codes\n");

   for (i = 1; i < maxWorkers; i++)
       for (j = 0; j < maxWorkers - i; j++){
           if (strcmp(list[j].zip, list[j + 1].zip) > 0) {
               temp[j] = list[j];
               list[j] = list[j + 1];
               list[j + 1] = temp[j];
           }
   }
   for (i = 0; i < maxWorkers; i++) {
       printf("%s %s %s\n", list[i].first, list[i].last, list[i].zip);
       fprintf(csis, "%s %s %s\n", list[i].first, list[i].last, list[i].zip);
   }

}

Answer 1

您从未在程序中打开文件csis.txt。即

FILE* csis; // This is done
csis=fopen("csis.txt","w"); // Is missing