Mathf.PI 圆周率

static var PI : float

Description描述

The infamous 3.14159265358979... value (Read Only).

PI(读pai)的值,也就是圆周率(π)的值3.14159265358979323846...(只读)

using UnityEngine;
using System.Collections;

public class example : MonoBehaviour {
	public float radius = 5;
	void Start() {
		float perimeter = 2 * Mathf.PI * radius;
		Debug.Log("The perimeter of the circle is: " + perimeter);
	}
}
var radius : float = 5;

function Start() {
	var perimeter : float = 2 * Mathf.PI * radius;
	Debug.Log("The perimeter of the circle is: " + perimeter);
}
Page last updated: 2011-2-21