static void Main()
{
Foo();
return;
StudentClass studentClass1 = new StudentClass();
StudentClass studentClass2 = new StudentClass();
Console.WriteLine(studentClass1.GetHashCode());
Console.WriteLine(studentClass2.GetHashCode());
//SimpleDictTest();
StackTest();
return;
Console.WriteLine("---");
//list 无法被=null
List <int> vs = new List <int>();
CreateList(vs);
Console.WriteLine(vs.Count);//0
//传递了list这个引用过去 可以Add到元素
var list = new List <int>();
AddList(list);
Console.WriteLine(list.Count);//1
}
static void Main1()
{
var str1 = "wzx";
var str2 = "www";
var str3 = "www";
Console.WriteLine("str1 hash code:" + str1.GetHashCode()); //-1666658207
Console.WriteLine("str2 hash code:" + str2.GetHashCode()); //1653609987
Console.WriteLine("str3 hash code:" + str3.GetHashCode()); //1653609987
StudentClass student1 = new StudentClass();
student1.Name = "1";
StudentClass student2 = new StudentClass();
student2.Name = "1";
Console.WriteLine("student1== student2 " + (student1 == student2)); //False
Console.WriteLine("student1.Equals(student2) " + (student1.Equals(student2))); //True
Console.WriteLine("student1.GetHashCode()==student2.GetHashCode() " + (student1.GetHashCode() == student2.GetHashCode())); //True
List <StudentClass> studentClasses1 = new List <StudentClass>();
studentClasses1.Add(student1);
List <StudentClass> studentClasses2 = new List <StudentClass>();
studentClasses2.Add(student1);
Console.WriteLine(studentClasses1.Equals(studentClasses2)); //False
Console.WriteLine(studentClasses1.Equals(studentClasses1)); //True
}