总体写得不错,问题出在你的
fscanf和fprintf函数参数传递错误了
123456789101112131415161718192021222324252627282930313233343536 #include "stdio.h"#include "stdlib.h"struct s{ int id; char name[10]; int co1; int co2; int co3; int co4;};int main(){ int i=0,count; struct s st[10]; char fname[10],ch; FILE *infile,*outfile; printf("please input data file name:\n"); scanf("%s",fname); infile=fopen(fname,"r"); outfile=fopen("output.txt","w"); if(infile==NULL) { printf("\nFailed to open the file"); exit(1); } fscanf(infile,"%d",&count); while(i
第二,fprintf你要写入文件的数据,应该是真正的数据本身,不是数据的地址,所以应该将变量前的取地址符全去掉就好,
第三,注意加好换行符\n