重载比较运算符示范

CMakeLists.txt

@@ -3,4 +3,4 @@ project(CPP_11_HeavyLoad)
 
 set(CMAKE_CXX_STANDARD 11)
 
-add_executable(CPP_11_HeavyLoad main.cpp test.cpp test.h operatorDemo.cpp operatorDemo.h minusOperator.cpp minusOperator.h)
+add_executable(CPP_11_HeavyLoad main.cpp test.cpp test.h operatorDemo.cpp operatorDemo.h minusOperator.cpp minusOperator.h relationOperator.cpp relationOperator.h)

main.cpp

@@ -2,6 +2,11 @@
 #include "test.h"
 #include "operatorDemo.h"
 #include "minusOperator.h"
+#include "relationOperator.h"
+#include <string>
+#include <iostream>
+
+using namespace std;
 
 int main() {
 
@@ -13,7 +18,7 @@ int main() {
     test->max("字符串", 12, 12);
     cout << max1 << "," << max2 << endl;
 
-    //重载＋号运算符
+    //重载＋号运算符： 其他符号的- ,* , / 重载与加号类型
     operatorDemo op1(12, 12, 12), op2(34, 23, 14); //申明两个类对象并给出初始值
     op1.print();
     op2.print();
@@ -30,5 +35,10 @@ int main() {
     b.print();
 
 
+    //重载比较运算大于号,用于比较两个对象是否相等
+    relationOperator relationOperator(12,34), relationOperator1(99,23);
+   string max= relationOperator>relationOperator1? "大于" : "不大于";
+   cout<<max<<endl;
+
     return 0;
 }

relationOperator.cpp

+//
+// Created by 11010 on 2023/4/8.
+//
+
+#include "relationOperator.h"
+
+void relationOperator::print() {
+cout<<"长："<<len<<",宽:"<<width<<endl;
+}
+
+
+relationOperator::relationOperator(int l, int w):len(l),width(w) {
+
+}
+
+
+bool relationOperator::operator>(const relationOperator &ro) {
+    //只要有一个大于就返回true
+    if (len>ro.len)  return true;
+    if (width>ro.width) return true;
+    //均不大于返回false
+    return false;
+}

relationOperator.h

+//
+// Created by 11010 on 2023/4/8.
+//
+
+#ifndef CPP_11_HEAVYLOAD_RELATIONOPERATOR_H
+#define CPP_11_HEAVYLOAD_RELATIONOPERATOR_H
+#include <iostream>
+
+using namespace std;
+
+class relationOperator {
+public:
+    int len;
+    int width;
+
+    void print(); //打印信息
+    relationOperator(int l,int w);
+    bool operator> (const relationOperator &ro); //重载小于运算符
+};
+
+
+#endif //CPP_11_HEAVYLOAD_RELATIONOPERATOR_H