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 Unity的GUI这东西如果学过C#的话，应该很好理解的，可以认为是.net的用户交互控件，实际上应该也就是这个样子，类似于Button,Label,Textbox….的这些东西在GUI里面都有。使用的时候也可以随时添加删除。所以还是很简单的。

using UnityEngine;using System.Collections;public class Gui : MonoBehaviour {    public GUIStyle buttonstyle;    string text="";    bool result;    float hsliderVale;    // Use this for initialization    void Start () {    }    // Update is called once per frame    void Update () {    }    void OnGUI(){        hsliderVale = GUI.HorizontalScrollbar (new Rect(80, 100, 100, 30),hsliderVale,2,0,10);        result = GUI.Toggle(new Rect(10 * hsliderVale, 170, 100, 30),result,"Toggle");                text = GUI.TextField(new Rect (310, 330, 100, 40),text);                GUI.Button(new Rect(180,120,100,150),"这是一个button按钮","button");                GUI.Button(new Rect(110,120,200,210),"这是一个button按钮","toggle");                GUI.Label(new Rect(0,0,200,50),"box类型的lable","box");                GUI.Label (new Rect (150, 110, 200, 100), "buttonstyle");             if (GUI.RepeatButton(new Rect (310, 220, 200, 100),text) )            {                print("用户单击了重复按钮");                }    }}

 效果如图：

 注意Rect()这个定位函数被多次用到，其具体的定义如下：

Rect(x,y,w,h)x表示水平距离，即以左上角为0,0点，距离左边的距离y表示垂直距离，距离顶部的距离w表示这个矩形的宽度h表示这个矩形的高度

以下是多种组件的脚本中的具体使用方式

四个角定位

GUI.Label(new Rect(30, 10, 100, 200), "zzzzzz");    GUI.Label(new Rect(30, Screen.height - 50, 100, 200), "zzzzzz");    GUI.Label(new Rect(Screen.width - 50, Screen.height - 50, 100, 200), "zzzzzz");    GUI.Label(new Rect(Screen.width - 50, 10, 100, 200), "zzzzzz");    #endregion

二、Button

GUI.Label(new Rect(30, 30, 100, 200), "Button");        GUI.Button(new Rect(30, 50, 50, 50), "这个是一个按钮");        GUI.Button(new Rect(90, 50, 50, 50), text);        //带图片带文字的按钮        GUIContent guic = new GUIContent("按钮", text);        GUI.Button(new Rect(150, 50, 50, 50), guic);        //按键从上往下排 自动排序        if (GUILayout.Button("1"))            Debug.Log("1");        if (GUILayout.Button("2"))            Debug.Log("2");        if (GUILayout.Button("3"))            Debug.Log("3");        if (GUILayout.Button("4"))            Debug.Log("4");        if (GUILayout.Button("5"))            Debug.Log("5");        if (GUILayout.Button("6"))            Debug.Log("6");        if (GUILayout.Button("7"))            Debug.Log("7");        if (GUILayout.Button("8"))            Debug.Log("8");

三、Toggle控件

GUI.Label(new Rect(30, 100, 100, 200), "Toggle");  toggle1 = GUI.Toggle(new Rect(30, 120, 100, 30), toggle1, "Toggle");  toggle2 = GUI.Toggle(new Rect(30, 150, 100, 30), toggle2, text);

四、滑动条

GUI.Label(new Rect(30, 180, 100, 200), "滑动条");    hSliderValue = GUI.HorizontalSlider(new Rect(30, 200, 100, 30), hSliderValue, 0, 10);    Show("水平滑动条:" + hSliderValue);    vSliderVaule = GUI.VerticalSlider(new Rect(0, 200, 30, 100), vSliderVaule, 0, 10);

五、Toolbar

toolbarInt = GUI.Toolbar(new Rect(30, 250, 250, 30), toolbarInt, new string[]  { "功能一", "功能二", "功能三" });        if (lastValue != toolbarInt)        {            if (toolbarInt == 0)                Debug.Log(1111);            if (toolbarInt == 1)                Debug.Log(2222);            if (toolbarInt == 2)                Debug.Log(3333);            lastValue = toolbarInt;        }

六、Scrollbar

GUI.Label(new Rect(30, 300, 100, 200), "Scrollbar");  hSbarValue, 1.0f, 0.0f, 10.0f);  vSbarValue = GUI.VerticalScrollbar(new Rect(0, 320, 30, 100),   vSbarValue, 1.0f, 0.0f, 10.0f);

七、菜单

GUI.Box(new Rect(30, 350, 100, 100), "Menu");    if (GUI.Button(new Rect(40, 370, 80, 20), "1"))

八、TextField

useNmae = GUI.TextField(new Rect(Screen.width / 2, Screen.height / 2 - 200, 150, 30), useNmae);        //*****密码字符的掩码字符        passWord = GUI.PasswordField(new Rect(Screen.width / 2, Screen.height / 2 - 150, 150, 30), passWord, '*', 25);        if (GUI.Button(new Rect(Screen.width / 2, Screen.height / 2 - 50, 150, 30), "登录"))        {            isBntLogin = true;            Debug.Log(isBntLogin+ "isBntLogin");            if (useNmae.Equals("admin") && passWord.Equals("123"))            {                isSuccess = true;                GUI.Label(new Rect(500, 350, 150, 30), "登录成功");            }            else            {                isSuccess = false;                GUI.Label(new Rect(500, 350, 150, 30), "登录失败");            }        }        if (isBntLogin)        {            if (isSuccess)                GUI.Label(new Rect(Screen.width / 2, Screen.height / 2 + 50, 150, 30), "登录成功");            else            {                GUI.Label(new Rect(Screen.width / 2, Screen.height / 2 + 50, 150, 30), "登录失败");            }        }

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