#include<stdio.h> void getFiveNum(int a[], FILE *fp); void position(int a[], int num, FILE *fp); int main() { FILE *fp = fopen("dict.dic", "r"); int a[6]; a[0] = 5; getFiveNum(a, fp); int num; scanf("%d", &num); position(a, num, fp); fclose(fp); return 0; } void getFiveNum(int a[], FILE fp) { int ch; for (int i = 1; i <= 5; i++) { ch = fgetc(fp); a[i] = 0; while (ch != 10) { a[i] = a[i] * 10 + (ch - '0'); ch = fgetc(fp); } } } void position(int a[], int num, FILE fp) { int ch, not1 = 0, not2 = 0, line = a[num], enter = 5, chNext; while (enter < a[num - 1]) { ch = fgetc(fp); if (ch == 10) enter++; } ch = fgetc(fp); chNext = fgetc(fp); while (enter < line) { if (not2 == 0 && ch == '/' && chNext == '/') { not1 = 1; }else if (not1 == 0 && ch == '/' && chNext == '') { not2 = 1; }else if (not1 == 1 && chNext == 10) { not1 = 0; ch = chNext; chNext = fgetc(fp); }else if (not2 && ch == '' && chNext == '/') { not2 = 0; ch = chNext; chNext = fgetc(fp); if (chNext == 10) { enter++; } ch = chNext; chNext = fgetc(fp); if (chNext == 10) enter++; } if (not1 == 0 && not2 == 0) { printf("%c", ch); } ch = chNext; chNext = fgetc(fp); if (chNext == 10) { enter++; }else if (chNext == EOF) { if (not1 == 0 && not2 == 0) { printf("%c", ch); break; } else { break; } } } if (not1 == 0 && not2 == 0 && chNext == 10) { printf("%c", ch); } }将子函数并到主函数里

以下是将子函数并到主函数的代码：

#include<stdio.h>

int main() {
FILE *fp = fopen("dict.dic", "r");
int a[6];
a[0] = 5;
int ch, not1 = 0, not2 = 0, line = a[num], enter = 5, chNext;
for (int i = 1; i <= 5; i++) {
ch = fgetc(fp);
a[i] = 0;
while (ch != 10) {
a[i] = a[i] * 10 + (ch - '0');
ch = fgetc(fp);
}
}
int num;
scanf("%d", &num);
while (enter < a[num - 1]) {
ch = fgetc(fp);
if (ch == 10) enter++;
}
ch = fgetc(fp);
chNext = fgetc(fp);
while (enter < line) {
if (not2 == 0 && ch == '/' && chNext == '/') {
not1 = 1;
} else if (not1 == 0 && ch == '/' && chNext == '') {
not2 = 1;
} else if (not1 == 1 && chNext == 10) {
not1 = 0;
ch = chNext;
chNext = fgetc(fp);
} else if (not2 && ch == '' && chNext == '/') {
not2 = 0;
ch = chNext;
chNext = fgetc(fp);
if (chNext == 10) {
enter++;
}
ch = chNext;
chNext = fgetc(fp);
if (chNext == 10) enter++;
}
if (not1 == 0 && not2 == 0) {
printf("%c", ch);
}
ch = chNext;
chNext = fgetc(fp);
if (chNext == 10) {
enter++;
} else if (chNext == EOF) {
if (not1 == 0 && not2 == 0) {
printf("%c", ch);
break;
} else {
break;
}
}
}
if (not1 == 0 && not2 == 0 && chNext == 10) {
printf("%c", ch);
}
fclose(fp);
return 0;
}

注意，将子函数并到主函数的代码，需要将子函数中的参数 FILE *fp 删除，并将 fp 声明为全局变量，否则会编译报错。