3.函数参数默认值

Posted 2020-10-27 喵小喵~

 //默认参数要指定放在右边
 1 #include <iostream>
 2 #include <cstdarg>
 3 using namespace std;
 4 
 5 int add(int a,int b,int c = 1)
 6 {
 7     return a + b + c;
 8 }
 9 
10 void main()
11 {
12     cout << add(1, 2);
13 
14 }