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void main()
{
FILE *file0;
char fn[10],tn[10];
printf("please printf the data.");
scanf("%s",tn);
file0=fopen("E:\\C\\dbms\\data.txt","a");
printf("please printf the data again.");
scanf("%s",fn);
fscanf(file0,"%s",fn);
printf("%s",fn);
if(strcmp(fn,tn)==0)
{
printf("The data is exist.");
}
else
printf("The data is not exist.");
}
void main()
{
FILE *file0;
char fn[10],tn[10];
printf("please printf the data.");
scanf("%s",tn);
file0=fopen("E:\\C\\dbms\\data.txt","a");
printf("please printf the data again.");
scanf("%s",fn);
while(...)
{
fscanf(file0,"%s",fn);
printf("%s",fn);
if(strcmp(fn,tn)==0)
{
printf("The data is exist.");
}
}
printf("The data is not exist.");
}
while(!feof(file0))
{
fscanf(file0,"%s",fn);
}