我想在这样的参数中传递一个带有参数的方法。但它仍然出错,我不知道该怎么办。
void WriteInScreen(string text){
Console.WriteLine(text);
}
void WriteInScreen10Times(string text){
for (int i = 1; i <= 10; i++){
Console.WriteLine(text);
}
}
void CallWriteInScreen(Action Method) {
Method();
}
void StartCall(){
//Error: Argument 2: Can't not convert from void to System.Action
CallWriteInScreen(WriteInScreen("Hello!"));
CallWriteInScreen(WriteInScreen10Time("Hi!"));
}
这只是我的测试代码,我需要解决这个问题才能继续开发我的程序。
CallWriteToScreen
只接受一个不接受任何参数并且不产生结果的委托(又名 an Action
)。不确定是否要创建一系列CallWriteToScreen
接受参数化Action
s的方法:
void CallWriteInScreen(Action Method) {
Method();
}
void CallWriteInScreen<T1>(Action<T1> Method, T1 arg1) {
Method(arg1);
}
void CallWriteInScreen<T1, T2>(Action<T1, T2> Method, T1 arg1, T2 arg2) {
Method(arg1, arg2);
}
void StartCall(){
CallWriteInScreen(WriteInScreen, "Hello!");
CallWriteInScreen(WriteInScreen10Time, "Hi!");
}
或者只是想包装最终的方法调用:
void StartCall(){
CallWriteInScreen(() => WriteInScreen("Hello!"));
CallWriteInScreen(() => WriteInScreen10Time("Hi!"));
}
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