C#、Unity 数据类型的默认值

using System.Collections;

using System.Collections.Generic;

using UnityEngine;

public class Main : MonoBehaviour{

	private bool boolVal;

	private byte byteVal;

	private double doubleVal;

	private float floatVal;

	private int intVal;

	private long longVal;

	private short shortVal;

	private uint uintVal;

	private char charVal;

	private string stringVal;

	private Vector2 vector2Val;

	private Vector3 vector3Val;

	private Man classVal;

	private CustomData structVal;

	private bool? boolVal2;

	private float? floatVal2;

	private int? intVal2;

	private System.Nullable<int> intVal3;

	private Vector2? vector2Val2;

	private Vector2? vector2Val3=null;

	private CustomData? structVal2=null;

	private void Start() {

		Debug.LogFormat("boolVal:{0}",boolVal);//output:boolVal:False

		Debug.LogFormat("byteVal:{0}",byteVal);//output:byteVal:0

		Debug.LogFormat("doubleVal:{0}",doubleVal);//output:doubleVal:0

		Debug.LogFormat("floatVal:{0}",floatVal);//output:floatVal:0

		Debug.LogFormat("intVal:{0}",intVal);//output:intVal:0

		Debug.LogFormat("longVal:{0}",longVal);//output:longVal:0

		Debug.LogFormat("{0}",shortVal);//output:shortVal:0

		Debug.LogFormat("uintVal:{0}",uintVal);//output:uintVal:0

		Debug.LogFormat("charVal:{0},{1}",charVal,charVal=='\0');//output:charVal:

		if(charVal=='\0')Debug.Log("True");//output:True

		Debug.LogFormat("vector2Val:{0},{1}",vector2Val,vector2Val==Vector2.zero);//output:vector2Val:(0.0, 0.0),True

		Debug.LogFormat("vector3Val:{0},{1}",vector3Val,vector3Val==Vector3.zero);//output:vector3Val:(0.0, 0.0, 0.0),True

		Debug.LogFormat("classVal:{0},{1}",classVal,classVal==null);//output:classVal:,True

		Debug.LogFormat("structVal:{0}",structVal);//output:structVal:CustomData

		Debug.LogFormat("boolVal2:{0}",boolVal2==null);//output:boolVal2:True

		Debug.LogFormat("floatVal2:{0}",floatVal2==null);//output:floatVal2:True

		Debug.LogFormat("intVal2:{0}",intVal2==null);//output:intVal2:True

		Debug.LogFormat("intVal3:{0}",intVal3==null);//output:intVal3:True

		Debug.LogFormat("vector2Val2:{0}",vector2Val2==null);//output:vector2Val2:True

		Debug.LogFormat("vector2Val3:{0}",vector2Val3==null);//output:vector2Val3:True

		Debug.LogFormat("structVal2:{0}",structVal2==null);//output:structVal2:True

	}

}

public class Man{

}

public struct CustomData{

	public int ID;

}
CSharp

C#、Unity 数据类型的默认值
