问题遇到的现象和发生背景
为什么读取文件后的n是45呢?这个数是怎么转换的?
用代码块功能插入代码,请勿粘贴截图
#include <stdio.h>
int main(){
FILE *fp;
int n, a[2]={65,66};
char ch;
fp=fopen("d.dat","w");
fprintf(fp,"%d%d",a[0],a[1]);
fclose(fp);
fp=fopen("d.dat","r");
fscanf(fp,"%c",&ch);
n=ch;
// printf("%d\n",n);
while(n!=0){
printf("%d",n%10);
n=n/10;
}
fclose(fp);
return 0;
}