1. WIKI教程
2. 学习C ++
3. Show 例子

Show 例子

请尝试以下示例以了解C ++中可用的所有赋值运算符。

将以下C ++程序复制并粘贴到test.cpp文件中，然后编译并运行该程序。

#include <iostream>
using namespace std;
main() {
   int a = 21;
   int c ;
   c =  a;
   cout << "Line 1 - =  Operator, Value of c = : " <<c<< endl ;
   c +=  a;
   cout << "Line 2 - += Operator, Value of c = : " <<c<< endl ;
   c -=  a;
   cout << "Line 3 - -= Operator, Value of c = : " <<c<< endl ;
   c *=  a;
   cout << "Line 4 - *= Operator, Value of c = : " <<c<< endl ;
   c /=  a;
   cout << "Line 5 - /= Operator, Value of c = : " <<c<< endl ;
   c  = 200;
   c %=  a;
   cout << "Line 6 - %= Operator, Value of c = : " <<c<< endl ;
   c <<=  2;
   cout << "Line 7 - <<= Operator, Value of c = : " <<c<< endl ;
   c >>=  2;
   cout << "Line 8 - >>= Operator, Value of c = : " <<c<< endl ;
   c &=  2;
   cout << "Line 9 - &= Operator, Value of c = : " <<c<< endl ;
   c ^=  2;
   cout << "Line 10 - ^= Operator, Value of c = : " <<c<< endl ;
   c |=  2;
   cout << "Line 11 - |= Operator, Value of c = : " <<c<< endl ;
   return 0;
}

编译并执行上述代码时，会产生以下结果 -

Line 1 - =  Operator, Value of c = : 21
Line 2 - += Operator, Value of c = : 42
Line 3 - -= Operator, Value of c = : 21
Line 4 - *= Operator, Value of c = : 441
Line 5 - /= Operator, Value of c = : 21
Line 6 - %= Operator, Value of c = : 11
Line 7 - <<= Operator, Value of c = : 44
Line 8 - >>= Operator, Value of c = : 11
Line 9 - &= Operator, Value of c = : 2
Line 10 - ^= Operator, Value of c = : 0
Line 11 - |= Operator, Value of c = : 2