我要评论复制代码 代码如下:
class program
{
static void main(string[] args)
{
type t = typeof(test);
object result;
test tc =new test();
console.writeline("invoke a static method");
t.invokemember("sayhello",bindingflags.invokemethod | bindingflags.static | bindingflags.public, null, null, new object[] { });
console.writeline("------------------------");
console.writeline("invoke a generic method");
list<string> list = new list<string>();
list.add("guohu");
list.add("leihu");
//we should assign the parameter type to generic method by using makegenericmethod
methodinfo mi = t.getmethod("print").makegenericmethod(typeof(string));
mi.invoke(null, new object[] { list });
console.writeline("------------------------");
console.writeline("invoke a instance method");
methodinfo m = t.getmethod("swap");
object[] obj = new object[2];
obj[0] = 123;
obj[1] = 230;
m.invoke(new test(), obj);
console.writeline("{0},{1}", obj[0], obj[1]);
console.writeline("------------------------");
console.writeline("output field name");
fieldinfo[] fi = t.getfields();
foreach (fieldinfo name in fi)
{
console.writeline("{0}",name);
}
console.writeline("------------------------");
console.writeline("invoke a method with named parameters");
object[] argvalues = new object[] { "guo", "hu" };
string[] argnames = new string[] { "lastname", "firstname" };
t.invokemember("printname", bindingflags.invokemethod, null, null, argvalues, null, null, argnames);
console.writeline("------------------------");
console.writeline("get a field value");
result = t.invokemember("name", bindingflags.getfield | bindingflags.getproperty, null, tc, new object[] { });
console.writeline("name == {0}", result);
console.writeline("------------------------");
console.writeline("set a field value");
t.invokemember("name", bindingflags.setfield, null, tc, new object[] { "new value" });
result = t.invokemember("name", bindingflags.getfield | bindingflags.getproperty, null, tc, new object[] { });
console.writeline("name == {0}",result);
}
}
class test
{
public string name;
public test()
{
name = "initilize name";
}
public static void sayhello()
{
console.writeline("sayhello");
}
public static void print<t>(ienumerable<t> item)
{
foreach (t t in item)
{
console.writeline("{0}", t);
}
}
public static void printname(string firstname, string lastname)
{
console.writeline("{0},{1}", lastname, firstname);
}
public void swap(ref int a, ref int b)
{
int x = a;
a = b;
b = x;
}
}
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