这个程序哪里错了？ 求大神解答？？？？？？


#include "Stdio.h"

#include "stdlib.h"

#define NUM_USER 6

struct User_dat

{ char m_addr[6];

 int m_water;

 float m_mon_water;

int m_eletr;

 float m_mon_eletr;
 float m_mon_sum;

} T_User[NUM_USER],User[NUM_USER+1];  

int main()
{
 float T_M_PER_WAT = 0.0, T_M_PER_ELE = 0.0;

 float M_PER_WAT = 0.0, M_PER_ELE = 0.0;

FILE *input, *charge;

int i;

char t[1]={0};
printf("Welcome to use this system\n");


printf("Please input the money of per water:\n");

scanf("%f",&T_M_PER_WAT);

printf("Please input the money of per eletricity:\n");
scanf("%f",&T_M_PER_ELE);

 

    for(i = 0; i < NUM_USER; i ++)
    {
    printf("Please input the %d user address:\n",i+1);

    gets(t);
    gets(T_User[i].m_addr);  
    printf("Please input the water of the %d user:\n",i+1);
    scanf("%d",&T_User[i].m_water);
    printf("Please input the eletricity of the %d user:\n",i+1);
    scanf("%d",&T_User[i].m_eletr);
    }
}
input = fopen("input.dat","w");
if(input == NULL)
{
printf("cannot open input.dat\n");
exit(0);
else
{
fprintf(input,"%14.1f\t%5.1f\n",T_M_PER_WAT,T_M_PER_ELE);

for(i = 0; i < NUM_USER; i ++)
{
fprintf(input,"%14s\t%5d\t%10d\n",T_User[i].m_addr,T_User[i].m_water,T_User[i].m_eletr);

}

}
fclose(input);
input = fopen("input.dat","r");

if(input == NULL)
{
printf("cannot open input.dat\n");
exit(0);
}

 else
 {
  fscanf(input,"%f\t%f\n",&M_PER_WAT,&M_PER_ELE);
  for(i = 0; i < NUM_USER; i ++)
  {
fscanf(input,"%14s\t%5d\t%10d\n",&User[i].m_addr,&User[i].m_water,&User[i].m_eletr);
 
User[i].m_mon_water = User[i].m_water*M_PER_WAT;
User[i].m_mon_eletr = User[i].m_eletr*M_PER_ELE;
User[i].m_mon_sum = User[i].m_mon_water+User[i].m_mon_eletr;
User[NUM_USER].m_water +=User[i].m_water;
User[NUM_USER].m_eletr += User[i].m_eletr;
User[NUM_USER].m_mon_water += User[i].m_mon_water;
User[NUM_USER].m_mon_eletr += User[i].m_mon_eletr;
User[NUM_USER].m_mon_sum += User[i].m_mon_sum;
}
strcpy(User[NUM_USER].m_addr,"Total");
}
fclose(input);
charge = fopen("charge.dat","w");
if(charge == NULL)
{
printf("cannot open input.dat\n");
exit(0);
}
else
{
fprintf(charge,"%14s\t%5s\t%13s\t\%10s\t%18s\t%11s\n","User'saddress","Water","Water'smoney","Eletricity","Eletricity's money","Total money");
for(i = 0; i < NUM_USER + 1; i ++)
{
fprintf(input,"%14s\t%5d\t%13.1f\t\%10d\t%18.1f\t%11.1f\n",User[i].m_addr,User[i].m_water,User[i].m_mon_water,User[i].m_eletr,User[i].m_mon_eletr,User[i].m_mon_sum);
}
}

fclose(charge);

return 0;

}

按f4时指针指在FILE*input那行

可以运行，但不是我想要的结果，还是要谢谢了！