C#通过return带回返回值

墨蓝 2022-04-25 10:06 249阅读 0赞

### Child.cs ###

using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Text;
    
    namespace LeiheDuixiang
    {
        /// <summary>
        /// 小朋友
        /// </summary>
        class Child
        {
            /// <summary>
            /// 求和
            /// </summary>
            /// <param name="n1"></param>
            /// <param name="n2"></param>
          public int Add(int n1, int n2)
          {
              int sum = n1 + n2;
              return sum; //返回值
          }
    
        }
    }

### Program.cs ###

using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Text;
    
    namespace LeiheDuixiang
    {
        class Program
        {
            static void Main(string[] args)
            {
                Child child = new Child();
                       int sum1;
                   sum1 = child.Add(3, 7);
                   Console.WriteLine("两个数字的和是" + sum1);
            }
        }
    }

![20190531115136241.png][]

[20190531115136241.png]: /images/20220125/19a68bb92b1644b0afe87878ff133f3a.png