1 using System;
2 using System.Collections.Generic;
3 using System.Linq;
4 using System.Text;
5 using System.Reflection;
6
7 namespace MethodInfoInvokeDemo
8 {
9 public class ReflectTest
10 {
11 public void MethodWithNoParaNoReturn()
12 {
13 Console.WriteLine("不带参数且不返回值的方法");
14 }
15
16 public string MethodWithNoPara()
17 {
18 Console.WriteLine("不带参数且有返回值的方法");
19 return "MethodWithNoPara";
20 }
21
22 public string Method1(string str)
23 {
24 Console.WriteLine("带参数且有返回值的方法");
25 return str;
26 }
27
28 public string Method2(string str, int index)
29 {
30 Console.WriteLine("带参数且有返回值的方法");
31 return str + index.ToString();
32 }
33
34 public string Method3(string str, out string outStr)
35 {
36 outStr = "bbbb";
37 Console.WriteLine("带参数且有返回值的方法");
38 return str;
39 }
40
41 public static string StaticMethod()
42 {
43 Console.WriteLine("静态方法");
44 return "cccc";
45 }
46 }
47
48 class Program
49 {
50 static void Main(string[] args)
51 {
52 Type type = typeof(ReflectTest);
53 object reflectTest = Activator.CreateInstance(type);
54
55 //不带参数且不返回值的方法的调用
56 MethodInfo methodInfo = type.GetMethod("MethodWithNoParaNoReturn");
57 methodInfo.Invoke(reflectTest, null);
58
59 Console.WriteLine();
60
61 //不带参数且有返回值的方法的调用
62 methodInfo = type.GetMethod("MethodWithNoPara");
63 Console.WriteLine(methodInfo.Invoke(reflectTest, null).ToString());
64
65 Console.WriteLine();
66
67 //带参数且有返回值的方法的调用
68 methodInfo = type.GetMethod("Method1", new Type[]{typeof(string)});
69 Console.WriteLine(methodInfo.Invoke(reflectTest, new object[]{"测试"}).ToString());
70
71 Console.WriteLine();
72
73 //带多个参数且有返回值的方法的调用
74 methodInfo = type.GetMethod("Method2", new Type[] { typeof(string), typeof(int) });
75 Console.WriteLine(methodInfo.Invoke(reflectTest, new object[] { "测试", 100 }).ToString());
76
77 //Console.WriteLine();
78
79 //methodInfo = type.GetMethod("Method3", new Type[] { typeof(string), typeof(string) });
80 //string outStr = "";
81 //Console.WriteLine(methodInfo.Invoke(reflectTest, new object[] { "测试", outStr }).ToString());
82
83 Console.WriteLine();
84
85 //静态方法的调用
86 methodInfo = type.GetMethod("StaticMethod");
87 Console.WriteLine(methodInfo.Invoke(null, null).ToString());
88
89 Console.ReadKey();
90 }
91 }
92 }
