标签:fp name author int char Book 实验
1.
#include<stdio.h>
#define N 5
#define M 80
typedef struct
{
char name[M];
char author[M];
}Book;
int main()
{
Book x[N] = {{"一九八四","乔治.奥威尔"},
{"美丽新世界","赫胥黎"},
{"昨日的世界","斯蒂芬.茨威格"},
{"万历十五年","黄仁宇"},
{"一只特立独行的猪","王小波"},
};
int i;
FILE *fp;
fp=fopen("data1.txt","w");
if(fp == NULL)
{
printf("fail to open file\n");
return 1;
}
for(i=0;i<N;++i)
{
fprintf(fp,"%-20s%-20s\n",x[i].name,x[i].author);
printf("%-20s%-20s\n",x[i].name,x[i].author);
}
fclose(fp);
return 0;
}
2.
#include<stdio.h>
#define N 5
#define M 80
typedef struct
{
char name[M];
char author[M];
}Book;
int main()
{
Book x[N];
int i;
FILE*fp;
fp=fopen("data1.txt","r");
if(fp == NULL)
{
printf("fail to open file\n");
return 1;
}
for(i=0;i<N;++i)
{
fscanf(fp,"%s %s\n",x[i].name,x[i].author);
printf("%-20s %-20s\n",x[i].name,x[i].author);
}
fclose(fp);
return 0;
getchar();
}
3.
#include<stdio.h>
#define N 5
#define M 80
typedef struct
{
char name[M];
char author[M];
}Book;
int main()
{
Book x[N]={{"一九八四","乔治.奥威尔"},
{"美丽新世界","赫胥黎"},
{"昨日的世界","斯蒂芬.茨威格"},
{"万历十五年","黄仁宇"},
{"一只特立独行的猪","王小波"},
};
int i;
FILE *fp;
fp = fopen("data2.dat","wb");
if(fp == NULL)
{
printf("fail to open file\n");
return 1;
}
fwrite(x,sizeof(Book),N,fp);
fclose(fp);
return 0;
}
5.
#include<stdio.h>
#define N 5
#define M 80
typedef struct
{
char name[M];
char author[M];
}Book;
int main()
{
Book x[N];
int i;
FILE *fp;
fp=fopen("data2,dat","rb");
if(fp ==NULL)
{
printf("fail to open file\n");
return 1;
}
fread(x.sizeof(Book),N,fp);
for (i=0;i<N;++i)
printf("%-20s%-20s\n",x[i].name,x[i].author)
fclose(fp);
return 0;
}
标签:fp,name,author,int,char,Book,实验 来源: https://www.cnblogs.com/jsh9420/p/16350057.html
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