c# - C# 中的 PHP function_exists/class_exists 等价物

Question

我正在 asp.net/c# 中寻找这两个函数的替代方法。

if(function_exists('foo'))
{
    $returned = foo($bar);
}
if(class_exists('foo'))
{
    $fooclass = new foo($bar);
}

Answer 1

Assembly assembly = Assembly.LoadFile("assemblyAddress");

bool containClass = assembly.GetTypes().Where(x=>x.Name == "ClassName").Count() > 0;

bool containmethod = assembly.GetTypes().Where(
    x => x.GetMethods().Count(p => p.Name == "MethodName") > 0).Count() > 0;