unity3d数据存取

PlayerPrefs  

Class Functions

SetInt	Sets the value of the preference identified by key.
GetInt	Returns the value corresponding to key in the preference file if it exists.
SetFloat	Sets the value of the preference identified by key.
GetFloat	Returns the value corresponding to key in the preference file if it exists.
SetString	Sets the value of the preference identified by key.
GetString	Returns the value corresponding to key in the preference file if it exists.
HasKey	Returns true if key exists in the preferences.
DeleteKey	Removes key and its corresponding value from the preferences.
DeleteAll	Removes all keys and values from the preferences. Use with caution.
Save	Writes all modified preferences to disk.

官方英文文档：

http://unity3d.com/support/documentation/ScriptReference/PlayerPrefs.html

Unity 中保存或读取数组的方法

http://www.cocoachina.com/gamedev/gameengine/2011/0214/2651.html