Question

Description

Does the object exist?

对象是否存在？

The two examples below give the same result.

下面的两个例子是同样的结果。

JavaScript:

	// check if there is a rigidbody attached to this transform
 
	if (rigidbody) 
	   Debug.Log("Rigidbody attached to this transform");

C#:

using UnityEngine;
using System.Collections;
 
public class Example : MonoBehaviour {
    void Example() {
        if (rigidbody)
            Debug.Log("Rigidbody attached to this transform");
 
    }
}

…is the same as this… 等同于…

JavaScript:

	// another way to check if a rigidbody is attached to this transform
 
	if (rigidbody != null)
	   Debug.Log("Rigidbody attached to this transform");

C#:

using UnityEngine;
using System.Collections;
 
public class Example : MonoBehaviour {
    void Example() {
        if (rigidbody != null)
            Debug.Log("Rigidbody attached to this transform");
 
    }
}