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Update 计数器前后自增.cpp

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This commit is contained in:
Falling-in-W-sweetty
2022-08-14 16:19:12 +08:00
committed by GitHub
parent 9f58fef2ce
commit 374867b3f0
1 changed files with 5 additions and 3 deletions
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8
practical_exercises/10_day_practice/day7/一元运算符/计数器前后自增.cpp
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@@ -1,4 +1,4 @@
//<EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>counter<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD>ּ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ԫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD>ּ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD><EFBFBD><EFBFBD>
//设计一个计数器counter，用类成员重载自增运算符实现计数器的自增，用友元重载实现计数器的自减。
#include<iostream>
using namespace std;
class Counter{
@@ -17,16 +17,18 @@ Counter Counter::operator++(){
return *this;
}
Counter Counter::operator++(int){
Counter t=*this;
n++;
return *this;
return t;
}
Counter operator--(Counter &c){
--c.n;
return c;
}
Counter operator--(Counter &c,int){
Counter t=*this;
c.n--;
return c;
return t;
}
void Counter::display(){
cout<<"counter number="<<n<<endl;