C语言项目--教师信息/学生成绩管理系统

这个系统实现两个功能，分别是管理教师的信息和学生的成绩，用户可以选择切换实现相应的功能。话不多说了，现在看下程序的实现截图：

下面贴出部分代码：

[cpp]
void add_tea(Teacher tea[])
{
    int i=0,j,num;
    char str[5];
    if(numtea!=0)
    {
        printf("cover the current record?(y/n)\n");
        gets(str);
        if(str[0]=='Y'||str[0]=='y')
            i=0;
        else i=numtea;
    }

    printf("Please input the number of you add the teachers:");
    scanf("%d",&num);
    if(i==0)
        numtea=num;
    else numtea+=num;
    if(numtea>lens)
    {
        lens+=10;
        tea=(Teacher *)realloc(tea,lens*SIZE);
    }
    printf("Please input the teacher's info:\n");
    for(;i<numtea;i++)
    {
        getchar();
        printf("please input the teacher's NO.:");
        gets(tea[i].number);
        printf("please input the teacher's name:");
        gets(tea[i].name);
        printf("please input the teacher's 易做图(man/woman 0/1):");
        gets(tea[i].易做图);
        if(tea[i].易做图[0]=='0') strcpy(tea[i].易做图,"man");
        else strcpy(tea[i].易做图,"woman");
        printf("please input the teacher's address:");
        gets(tea[i].addr);
        printf("the teacher is married(No/Yes 0/1):");
        gets(tea[i].married);
        if(tea[i].易做图[0]=='0') strcpy(tea[i].易做图,"No");
        else strcpy(tea[i].易做图,"Yes");
    }
    display_tea(tea,0,numtea-1);
    getchar();
}
void display_tea(Teacher tea[],int n1,int n2)
{
    int i;
    char str[2];
    if(numtea==0){
           printf("There is Nothing!\n");
           printf("Do you want to open some file to find the record?(Y/N)\n");
           gets(str);
           if (str[0]=='Y'||str[0]=='y')
           {
               openfileTXT(tea);
           }
           else
           {
               return;
           }
    }
    else
    {
        for(i=n1;i<=n2;i++)
            printf("number:%s\tname:%s\t\t易做图:%s\t\taddr:%s\t\tmarried:%s\t",tea[i].number,tea[i].name,tea[i].易做图,tea[i].addr,tea[i].married);
    }
}
void adjust(Teacher tea[])
{
    char str[5];
    int i=-1,j;

    if(numtea==0)
    {
        printf("there is nothing !!!\n");
        return;
    }
    while(i<0)
    {
        i=find_tea(tea);
        if(i>=0)
        {
            printf("Delete it?(y/n)");
            gets(str);
            if(str[0]=='y'||str[0]=='Y')
            {
                delete_tea(tea,i);
                /*count(stud); */
            }
            else
            {
                printf("Adjust it?(y/n)");
                gets(str);
                if(str[0]=='y'||str[0]=='Y')
                {

补充：软件开发 , C语言 ,