此代码仅读取文本文件中的第一行。如何在同一个文本文件中读取多行?谢谢你。
lname fname 的 GPA 为 88.0
lname fname 的 GPA 为 90.0
#include <stdio.h>
#include <stdlib.h>
struct stud{
char fname[21];
char lname[21];
float gpa;
} str;
int getStudData(struct stud *current_ptr); // struct function format
int main(void){
struct stud str;
getStudData(&str);
printf("Last Name: %s\n First Name: %s\n GPA: %.2f\n"
, str.fname, str.lname, str.gpa);
return 0;
}
int getStudData(struct stud *current_ptr){
FILE *studFile; // declaring a pointer file variable
studFile = fopen("StudData.txt", "r"); // format for fopen; file-variable = fopen(file_name, mode);
if ( studFile == NULL){
printf("Error: Unable to open StudData.txt file\n"); //test for error
}
else {
fscanf(studFile, "%20s %20s has a GPA of %f\n"
, current_ptr->fname, current_ptr->lname, ¤t_ptr->gpa);
// fscanf(file, format, ¶meter-1, ...)
fclose(studFile); // The function fclose will close the file.
}
return 0;
}