C# 反射

最新推荐文章于 2025-08-17 21:19:30 发布

原创最新推荐文章于 2025-08-17 21:19:30 发布 · 471 阅读

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CC 4.0 BY-SA版权

文章标签：

#c# #object #string #null #button #function

namespace Cao
{
public class Zheng
{
  public int Bi(string mao, ref double shui)
  {
   MessageBox.Show(mao);

shui = 123.0;

   return 0;
  }
}
}
private void button1_Click(object sender, EventArgs e)
{
Cao.Zheng z = new Cao.Zheng();
string fnName = "Bi";
MethodInfo mi = z.GetType().GetMethod(fnName, BindingFlags.Instance | BindingFlags.Public);
if (mi != null)
{
  string mao = "a";
  double shui = 0.0;
  object[] objArray = new object[] { mao, shui };
  object obj = mi.Invoke(z, objArray);
  shui = (double)objArray[1];
}
}

========================================================================================

function2

还没有解决吗？

如果名称空间及类的名称，如下可以执行指定类的方法：
string classFullName = "Cao.Zheng";//namespace+className
string methodName = "Bi";//methodName
Type type = Type.GetType(classFullName);//获取到类型
if (type != null)
{
object objInst = Activator.CreateInstance(type);//建立类型实例
if (objInst != null)
{
  MethodInfo mi = type.GetMethod(methodName, BindingFlags.Instance | BindingFlags.Public);//获取方法信息
  if (mi != null)
  {
   string mao = "a";
   double shui = 0.0;
   object[] objArray = new object[] { mao, shui };
   object obj = mi.Invoke(objInst, objArray);//调用方法
   shui = (double)objArray[1];//获取值
  }
}
}