Today I try to get the store mode of 'char' type.I write the code:
#include <stdio.h>#include <stdlib.h>
int main(int argc, char *argv[]){ FILE *fp=fopen("data","wb+"); int a[]={'a','A'}; char b[3]; if(fp==NULL){ printf("%s","error!"); exit(1); } fwrite(a,sizeof(int),2,fp); rewind(fp); fread(b,sizeof(char),2,fp); fclose(fp); printf("a[0]=%d,a[1]=%d,a=%s/n",&a[0],&a[1],a); printf("b[0]=%d,b[1]=%d,b=%s/n",&b[0],&b[1],b); system("PAUSE"); return 0;}
I got the result:
a[0]=2293608.a[1]=2293612,a=a
b[0]=2293592,b[1]=2293593,b=a
While the file "data" is:
a[sapce][space][sapce][space]A
Why?
Then I read the code and find :
printf("a[0]=%d,a[1]=%d,a=%s/n",a[0],a[1],a); printf("b[0]=%d,b[1]=%d,b=%s/n",&b[0],&b[1],b);
it not work,because the &a[0] return the address of a[0] not value of a[0].
Shame!
