关于C语言中fprintf乱码的问题

[ypf_1227]

#include "stdlib.h" 
#include "stdio.h" 
#include "string.h"

void selecettype(FILE *file)
{
	
	char type; 
	printf("please selecet type,i or c."); 
    scanf("%s",&type);
	
	
    if(type=='i') 
	{ 
         int num;
         scanf("%d",&num);
         fprintf(file,"%d",&num); 
         //fwrite(&num,4,1,file);
                                    //不论用fprintf还是fwrite输入数字之后文件里显示的总是乱码
	} 
     else if(type=='c')
	 {  
          char string; 
	  scanf("%s",&string);
	  fprintf(file,"%s",&string); //fprintf输入后文件内容显示正确
          //fwrite(&string,1,1,file); //fwrite输入后文件内容显示为乱码

	} 
	
	
}


void createtable(FILE *file) 
{ 
    int i,SIZE; 
    printf("please printf the size:"); 
    scanf("%d",&SIZE); 
    for(i=0;i <SIZE;i++) 
	{ 
        selecettype(file); 
	} 


} 


void insertdata(FILE *file) 
{ 
    char decide; 
    printf("whether keep writing?y or n"); 
    scanf("%s",&decide);
	
	if(decide=='y') 
	{ 
		 
        createtable(file); 
        insertdata(file); 
	} 
    else if (decide=='n')
	{
		 printf("end printf."); 
	}
	
	
} 


void main() 
{ 
	FILE *file;
	file=fopen("E:\\createtable\\createtable\\data.txt","a"); 
	insertdata(file);
	fclose(file);

	FILE *file1; 
    char chs; 
    file1=fopen("E:\\createtable\\createtable\\shu_ju_zi_dian.txt","a"); 
    if(file1==NULL) 
	{ 
       printf("cannot open this file\n"); 
	} 
	printf("\nplease writing in shu_ju_zi_dian.txt.");
    chs=getchar(); 
    while(chs!='#') 
	{ 
       fputc(chs,file1); 
       putchar(chs); 
       chs=getchar(); 
	} 
    fclose(file1); 
} 

[猫已经找不回了]

你有输入中文?

[ypf_1227]

没有啊
int的我输入的是阿拉伯数字
char的我输入的是英文字母

[hai040]

fprintf(file,"%d",&num); //多了个&

char string;
scanf("%s",&string); //%s char 会越界的
fprintf(file,"%s",&string);

[ch_tei_hyou]

[Quote=引用 3 楼 hai040 的回复:]
fprintf(file,"%d",&num); //多了个&

char string;
scanf("%s",&string); //%s char 会越界的
fprintf(file,"%s",&string);
[/Quote]

同意。fprintf(file,"%d",&num);//你输出了&num以后的直到\0的内容

[ypf_1227]

问题解决了 非常感谢hai040

[子晞]

怎么会出现段错误，这段程序

[子晞]

#include "stdlib.h" 
#include "stdio.h" 
#include "string.h"

void selecettype(FILE *file)
{
    
    char type; 
    printf("please selecet type,i or c."); 
    scanf("%c",&type);
    getchar();
    
    
    if(type=='i') 
    { 
         int num;
         scanf("%d",&num);
         getchar();
         fprintf(file,"%d",num); 
         //fwrite(&num,4,1,file);
                                    //不论用fprintf还是fwrite输入数字之后文件里显示的总是乱码
    } 
     else if(type=='c')
     {  
          char string; 
      scanf("%c",&string);
      getchar();
      fprintf(file,"%c",string); //fprintf输入后文件内容显示正确
          //fwrite(&string,1,1,file); //fwrite输入后文件内容显示为乱码

    } 
    
    
}


void createtable(FILE *file) 
{ 
    int i,SIZE; 
    printf("please printf the size:"); 
    scanf("%d",&SIZE); 
    getchar();
    for(i=0;i <SIZE;i++) 
    { 
        selecettype(file); 
    } 


} 


void insertdata(FILE *file) 
{ 
    char decide; 
    printf("whether keep writing?y or n"); 
    scanf("%c",&decide);
    getchar();
    
    if(decide=='y') 
    { 
         
        createtable(file); 
        insertdata(file); 
    } 
    else if (decide=='n')
    {
         printf("end printf."); 
    }
    
    
} 


int  main() 
{ 
    FILE *file;
    file=fopen("E:\\data.txt","a"); 
    insertdata(file);
    fclose(file);

    FILE *file1; 
    char chs; 
    file1=fopen("E:\\dian.txt","a"); 
    if(file1==NULL) 
    { 
       printf("cannot open this file\n"); 
    } 
    printf("\nplease writing in dian.txt.");
    chs=getchar(); 
    while(chs!='#') 
    { 
       fputc(chs,file1); 
       putchar(chs); 
       chs=getchar(); 
    } 
    fclose(file1); 
    return 0;
} 

[changyuan551]

typedef struct node
{
char n[20];char ccnum[20];
char time[10];
struct node *next;
}NODE;
NODE *start;

class employee
{
private:
NODE *p;
NODE *q;
NODE *t;
}

void employee::save() //0:文件保存及退出!
{
FILE *file;
char name[50],n1[50];
cout<<"请输入文件名，此文件会保存在程序所在文件夹例如文件名：车次"<<endl;
cin>>n1;
sprintf(name,"%s.txt",n1);
file=fopen(name, "w");
p=q->next;
fprintf(file,"%s\t%s\t%s\n",p->n,p->ccnum,p->time);
p=p->next;
fclose(file);
}


各位大侠能帮忙看看这个么，出来的也是乱码啊=。=