为什么没有这些dat文件

Question

void shuchu(SqList &s,FILE *fp){
    int i;
    if((fp=fopen("input.dat","w"))==NULL){
        printf("不能打开文件!\n");
        return ; 
    } 
    //挨个遍历加入文件
    for(i=0;i<s.length;i++){
        fprintf(fp,"学号：%s\t姓名：%s\t数学成绩：%.1lf\t英语成绩：%.1lf\t计算机成绩：%.1lf\t平均分：%.1lf\n",
            s.elem[i].number,s.elem[i].name,s.elem[i].mathscore,
            s.elem[i].englishscore, s.elem[i].computerscore, s.elem[i].averscore);
    }    
    fclose(fp);//关闭文件，释放缓存
}
//对每个科目的成绩进行排序 ,从大到小
//数学
void mathsort(SqList &s,FILE *fp11){
    student temp;
    int i,j; 
    if((fp11=fopen("数学成绩排序.dat","w"))==NULL){
        printf("不能打开文件!\n");
        return ; 
    } 
    for(i=0;i<s.length;i++){
        s.elem[i].averscore=(s.elem[i].computerscore+s.elem[i].englishscore+s.elem[i].mathscore)/3;
    }
    for(i=0;i<s.length-1;i++){
        for(j=0;j<s.length-1-i;j++){
            if(s.elem[j].mathscore<s.elem[j+1].mathscore){
                temp=s.elem[j];
                s.elem[j]=s.elem[j+1];
                s.elem[j+1]=temp;
            }
        }
    }
    printf("数学排序：\n");
    fprintf(fp11,"数学排序：\n");
    for(i=0;i<s.length;i++){
        fprintf(fp11,"学号：%s\t姓名：%s\t数学成绩：%.1lf\t\n",
            s.elem[i].number,s.elem[i].name,s.elem[i].mathscore);
        printf("学号：%s\t姓名：%s\t数学成绩：%.1lf\t\n",
            s.elem[i].number,s.elem[i].name,s.elem[i].mathscore);
    }
    fclose(fp11);
}
//英语
void englishsort(SqList &s,FILE *fp12){
    student temp;
    int i,j; 
    if((fp12=fopen("英语成绩排序.dat","w"))==NULL){
        printf("不能打开文件!\n");
        return ; 
    } 
    for(i=0;i<s.length;i++){
        s.elem[i].averscore=(s.elem[i].computerscore+s.elem[i].englishscore+s.elem[i].mathscore)/3;
    }
    for(i=0;i<s.length-1;i++){
        for(j=0;j<s.length-1-i;j++){
            if(s.elem[j].englishscore<s.elem[j+1].englishscore){
                temp=s.elem[j];
                s.elem[j]=s.elem[j+1];
                s.elem[j+1]=temp;
            }
        }
    }
    printf("英语排序：\n");
    fprintf(fp12,"英语排序\n");
    for(i=0;i<s.length;i++){
        fprintf(fp12,"学号：%s\t姓名：%s\t英语成绩：%.1lf\t\n",
            s.elem[i].number,s.elem[i].name,s.elem[i].englishscore);
        printf("学号：%s\t姓名：%s\t数学成绩：%.1lf\t英语成绩：%.1lf\t\n",
            s.elem[i].number,s.elem[i].name,s.elem[i].mathscore,
            s.elem[i].englishscore, s.elem[i].computerscore, s.elem[i].averscore);
    }
    fclose(fp12);
}
//计算机
void computersort(SqList &s,FILE *fp13){
    student temp;
    int i,j; 
    if((fp13=fopen("计算机成绩排序.dat","w"))==NULL){
        printf("不能打开文件!\n");
        return ; 
    } 
    for(i=0;i<s.length;i++){
        s.elem[i].averscore=(s.elem[i].computerscore+s.elem[i].englishscore+s.elem[i].mathscore)/3;
    }    
    for(i=0;i<s.length-1;i++){
        for(j=0;j<s.length-1-i;j++){
            if(s.elem[j].computerscore<s.elem[j+1].computerscore){
                temp=s.elem[j];
                s.elem[j]=s.elem[j+1];
                s.elem[j+1]=temp;
            }
        }
    }
    printf("计算机排序：\n");
    fprintf(fp13,"计算机排序：\n");
    for(i=0;i<s.length;i++){
        fprintf(fp13,"学号：%s\t姓名：%s\t计算机成绩：%.1lf\t\n",
            s.elem[i].number,s.elem[i].name, s.elem[i].computerscore);
        printf("学号：%s\t姓名：%s\t计算机成绩：%.1lf\n",
            s.elem[i].number,s.elem[i].name, s.elem[i].computerscore);
    }
    fclose(fp13);
} 
//定义函数average,向文件输入学生的各科平均成绩
void average(SqList s,FILE *fp2)  
{
    int i,j;
    student temp;
    if((fp2=fopen("平均成绩排序.dat","w"))==NULL){
        printf("不能打开文件!");
        return ; 
    } 
    for(i=0;i<s.length;i++){
        s.elem[i].averscore=(s.elem[i].computerscore+s.elem[i].englishscore+s.elem[i].mathscore)/3;
    }
    for(i=0;i<s.length-1;i++){
        for(j=0;j<s.length-1-i;j++){
            if(s.elem[j].averscore<s.elem[j+1].averscore){
                temp=s.elem[j];
                s.elem[j]=s.elem[j+1];
                s.elem[j+1]=temp;
            }
        }
    }
    printf("按平均分排序：\n");
    fprintf(fp2,"按平均分排序：\n");
    for(i=0;i<s.length;i++){
        fprintf(fp2,"学号：%s\t姓名：%s\t数学成绩：%.1lf\t英语成绩：%.1lf\t计算机成绩：%.1lf\t平均分：%.1lf\n",
            s.elem[i].number,s.elem[i].name,s.elem[i].mathscore,
            s.elem[i].englishscore, s.elem[i].computerscore, s.elem[i].averscore);
        printf("学号：%s\t姓名：%s\t数学成绩：%.1lf\t英语成绩：%.1lf\t计算机成绩：%.1lf\t平均分：%.1lf\n",
            s.elem[i].number,s.elem[i].name,s.elem[i].mathscore,
            s.elem[i].englishscore, s.elem[i].computerscore, s.elem[i].averscore);
    }        
    fclose(fp2);
} 

Answer 1

啥意思？是报错了？还是你找不到文件写到哪里去了