C语言学习(37)

 1 //fscanf函数从指定的文件中按指定格式读入数据,与scanf函数作用类似,scanf从键盘输入，fscanf从文件输入
 2 #include<stdio.h>
 3 #include<stdlib.h>
 4 int main(){
 5     FILE *fp;
 6     int i,j;
 7     double m,n;
 8     char s1[100],s2[100],s3[100],s4[100];
 9     if((fp=fopen("file_data.txt","r"))==NULL){
10         printf("打开文件失败\n");
11         exit(0);
12     }
13     fscanf(fp,"%s%s%s%s",&s1[0],s2,s3,s4);
14     fscanf(fp,"%d%d",&i,&j);
15     fscanf(fp,"%lf%lf",&m,&n);
16     printf("%s %s %s %s\n",s1,s2,s3,s4);
17     printf("%d %d\n",i,j);
18     printf("%lf %lf\n",m,n);
19     return 0;
20 }