正无穷大的表示形式(只读)。
using UnityEngine;
using System.Collections;
public class ExampleClass : MonoBehaviour {
void Update() {
Debug.DrawLine(Vector3.zero, Vector3.forward * 100);
if (Physics.Raycast(Vector3.zero, Vector3.forward, Mathf.Infinity))
print("There is something in front of the object!");
}
}