unity 在指定目录创建文件/读取文件/在文件内写入字符串

！

import System.IO; //记得导入IO，使Path工作
var fileName;     //自定义路径
function OnGUI() { 
 
  if (GUI.Button(Rect(10,10,100,50),"Write File")) { ////1
 
  //fileName = Application.persistentDataPath + "/" + "test.txt"; 
 
    fileName ="c:/Windows/test.txt"; ////2
    WriteFile(fileName); ////3
    print(fileName);////8
 
  } 
   if (GUI.Button(Rect(10,110,100,50),"Read File")) { //01
    fileName ="c:/Windows/test.txt";//02
    ReadFile(fileName);//03
    print(fileName); //012
 
  }  
} 
//写文件 
function WriteFile(filepathIncludingFileName : String) ////4
 
{ 
   fileWriter = File.CreateText(filepathIncludingFileName);////5 
   fileWriter.WriteLine("我晕额！！！！"); ////6
   fileWriter.Close();////7
} 
//读取文件 
function ReadFile(filepathIncludingFileName : String) { //04
    sr = new File.OpenText(filepathIncludingFileName); //05
    input = ""; //06
    while (true)//07
     { 
     input = sr.ReadLine(); //08
     if (input == null) //09
      { 
       break;//010
      } 
     Debug.Log("line="+input);//011 
    } 
 
  sr.Close(); 
 
}