p;putc(' ',Temp);    
     putc(Top(OpHolder),Temp);
     Pop(OpHolder);
    }
    Push(holder,OpHolder);
   }
/******
如果当前运算符号的优先级小于或者等于堆栈中的运算符号的优先级,则将其放入temp中，并且将堆栈中的运算符号出栈，放入temp中，直到堆栈为空或者优先级小于堆栈顶元素的优先级
******/
   else if(OperatorValue(Top(OpHolder)) >= OperatorValue(holder)){   
    while((IsEmpty(OpHolder) != 1)
      && (OperatorValue(Top(OpHolder)) >= OperatorValue(holder))
      && (OperatorValue(Top(OpHolder))!=6))
    {
     putc(' ',Temp); 
     putc(Top(OpHolder),Temp);
     Push('B',Whereat);
     Pop(OpHolder);
    }
    Push(holder,OpHolder);
   }
   else if(OperatorValue(Top(OpHolder)) < OperatorValue(holder)){  
/******
如果当前运算符号的优先级大于堆栈中的运算符号的优先级,则将其压入堆栈中
******/
    Push(holder,OpHolder);
   }
  }
  holder=getc(In); 
 }                                  /* While循环结束*/

 while(IsEmpty(OpHolder)!=1){
/******
最后如果堆栈中还有运算符号，则一并放到temp中
******/
  Push('B',Whereat);
  putc(' ',Temp);  
  putc(Top(OpHolder),Temp);
  Pop(OpHolder);
 }
 MakeEmpty(OpHolder);
 free(OpHolder);
}

/******判断类型，1为运算符号，0为操作数，-1为错误******/
int IsOperator(char ToCompare)
{
 if (ToCompare == '(' || ToCompare == ')'|| ToCompare == '+' || ToCompare == '-'
  || ToCompare == '*'|| ToCompare == '/' || ToCompare == '^'|| ToCompare == '%')
 {
  return 1;
 }
 else if (ToCompare == '1' || ToCompare == '2'|| ToCompare == '3'
   || ToCompare == '4' || ToCompare == '5'|| ToCompare == '6'
   || ToCompare == '7'|| ToCompare == '8' || ToCompare == '9'
   || ToCompare == '0'|| ToCompare == '.')
  {
     return 0;
      }
 else{
  return -1;
 }
}

/******返回运算符号的优先级******/
int OperatorValue(char ValueToGive)
{
 if (ValueToGive == '(')
  return 6;
 if (ValueToGive == ')')
  return 5;
 if (ValueToGive == '^') 
  return 3;
    if (ValueToGive == '%') 
  return 2;
 if (ValueToGive == '*')
  return 2;
 if (ValueToGive == '/')
  return 2;
 if (ValueToGive == '+')
  return 1;
 if (ValueToGive == '-')
  return 1;
 return 0;
}

/******计算后缀表达式******/
void Calculate(FILE *Change, Stack Whereat, FILE *Temp)
{
 FStack Operands;
 float looker;
 char Op;
 char spacefinder;
 float answer = 0;
 float NumA;
 float NumB;
 Operands = (Ptr_Fn)malloc(sizeof(struct FNode));
 Operands->Next= NULL;
 
 while ((IsEmpty(Whereat) != 1) && PrintError != 1)
 {                                     /*循环直到Whereat空，或者遇到错误*/
  if (Top(Whereat) == 'A'){
   fscanf(Temp," ",&spacefinder);