求高手帮忙注释一段c语言程序

求高手帮忙注释一段c语言程序

void deletebyname()
{
int a=0;
int findmark=0;
int j;
int deletemark=0;
int i;
char name[20];
printf("\t\t\t请输入要删除用户姓名：");
scanf("%s",name);
for (i=a;i{
if (strcmp(student[i].name,name)==NULL)
{
printf("\t\t\t以下是您要删除的用户纪录：");
findmark++;
printf("\t\t\t________________________________");
printf("\t\t\t姓名： %s",student[i].name);
printf("\t\t\t电话： %s",student[i].phone);
printf("\t\t\t地址： %s",student[i].adress);
printf("\t\t\te-mail：%s",student[i].e_mail);
printf("\t\t\t________________________________");
printf("\t\t\t是否删除?(y/n)");
if (getch()=='y')
{
for (j=i;j student[j]=student[j+1];
num--;
deletemark++;
printf("\t\t\t删除成功");
if((i+1) {
printf("\t\t\t是否继续删除相同姓名的用户信息?(y/n)");
if (getch()=='y')
{
a=i;
continue;
}
}
printf("\t\t\t是否继续删除?(y/n)");
if (getch()=='y')
deletebyname();
return;
}
if((i+1) {
printf("\t\t\t是否继续删除相同姓名的用户信息?(y/n)");
if (getch()=='y')
{
a=i;
continue;
}
}
}
else
continue;
}
if ((deletemark==0)&&(findmark==0))
{
printf("\t\t\t没有该用户的纪录");
printf("\t\t\t是否继续删除?(y/n)");
if (getch()=='y')
deletebyphone();
return;
return;
}
else if (findmark!=0)
{
printf("\t\t\t没有重名信息");
printf("\t\t\t没有该用户的纪录");
printf("\t\t\t是否继续删除?(y/n)");
if (getch()=='y')
deletebyphone();
return;
return;
}
}
dele()
{
char choic;
printf("\t\t\t1-按电话号码删除 2-按姓名删除");
printf("\t\t\t请选择：");
choic=getch();
switch (choic)
{
case '1':deletebyphone();break;
case '2':deletebyname();break;
}
return(0);
}
listbyname()
{
int i,j;
struct record tmp;
for (i=1;i {
if(strcmp(student[i].name,student[i-1].name)<0)
{
tmp=student[i];
j=i-1;
do
{
student[j+1]=student[j];
j--;
}while ((strcmp(tmp.name,student[j].name)<0&&j>=0));
student[j+1]=tmp;
}
}
printf("\t\t\t排序成功,是否显示?(y/n)");
if (getch()=='y')
list();
return(0);
}
save()
{
int j;
FILE*fp;
fp=fopen("student.txt","w");
if (fp==NULL)
printf("can't open the file.");
if(num!=0)
{
for(j=0;j {

fwrite(student,sizeof(student),1,fp);
}
}
printf("保存成功！");
fclose(fp);
return(0);
}

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