C language file reading and writing

#include <stdio.h>
#include <string.h>  

// Structure statement  
struct Item
{
   char name[24];
   float  val;
};

void Writefile(Item & a)
{
    strcat (a.name,"\0");
    char ch;
    FILE *fp;// Define the file stream pointer , Used to open a file   
    fp = fopen("0063120.txt","a");// Write open file   
    fprintf(fp ,"%s\t%0.2f\n",  a.name, a.val);
    fclose(fp);// Close file a, If you open it, you have to close it   
}

void Readfile()
{
     struct Item b;
    FILE *fp;// Define the file stream pointer , Used to open a file   
    fp = fopen("0063120.txt","r");// Write open file  

    while(!feof(fp))
    {        
        fscanf(fp, "%s\t%f", b.name, &b.val);
        
        if(strlen(b.name) == 0) break;
        
        printf("%s\t%0.2f\n", b.name, b.val);
            
        memset(b.name, 0,sizeof(b.name)) ;    
    }

    fclose(fp);
}

int main()
{
    //struct Item a={ " centre post ", 2400};   // Structure definition and assignment  
    
    //Writefile(a);
    Readfile();
    
    getchar();
    return 0;
}