想学着用atof 但是不会 求指点

Question

#include
#include
#include

int main(void)
{
float convert, Sum = 0, Average;
char *pTemp = NULL;
int NumTemper, error, i;

do
{
printf("The number of temperatures would you like to enter\n");
fflush(stdin);
error = scanf("%d",&NumTemper);
}while((!error)||(NumTemper<0));

pTemp = (char *) malloc(NumTemper*sizeof(char));

if(pTemp!=NULL)
{
for(i=0; i<NumTemper; i++)
{
printf("\nPlease enter temperature: ");
fflush(stdin);
scanf("%s", &pTemp[i]);

convert[i]=atof(pTemp[i]);
Sum+=convert[i];

}
printf("\n\nThe average is %.2f", Sum/(float)NumTemper);
free(pTemp);
pTemp = NULL;
}
getch();

return 0;
}