C语言的文件操作 如何从既有汉字又有数字的文件中读出所需要数字

2025-04-29 19:09:53
推荐回答(1个)
回答1:

#include
void main()
{
FILE *fp;
int i,j,num,A[10][2]={0},P[10]={0};
char str[3][10];
if((fp=fopen("test.txt","rt"))==NULL)
{
printf("cannot open file\n");
return;
}
fscanf(fp,"数组个数:%d\n",&num);
fscanf(fp,"%s %s %s\n",str[0],str[1],str[2]);
for(i=0;i fscanf(fp,"A%d %d %d\n",&j,&A[i][0],&A[i][1]);
for(i=0;i fscanf(fp,"P%d=%d,",&j,&P[i]);
fscanf(fp,"P%d=%d\n",&P[num]);
fclose(fp);
}