# ObservableObj Class 1. 性质：静态类/单例类/实例类 2. 开发目的：带有监听器的 Obj，类似 JavaFX 中的 ObservableValue。 ## 方法 Method ### get() 获取Object #### 返回 Returns: Obj嗯 ### set(aObj) 设置Object #### 参数 Parameters: - 需要设置的 `Object` #### 返回 Returns: Obj ### addListener(aMethod) #### 参数 Parameters: - 添加监听器 监听器的 `aChange` 参数是`observableObj, oldChange, newChange` #### 返回 Returns: null ## 示例 Example ```autohotkey theObservableObj := new ObservableObj("FirstString") theObj := theObservableObj.get() LogPrintln(theObj,A_LineFile "(" A_LineNumber ")" " : " "theObj >>> `r`n") theObservableObj.addListener(new Function("callback")) theObservableObj.addListener(new Function("callback")) theObservableObj.set("SecondString") callback(observableObj, oldChange, newChange){ LogPrintln(observableObj,A_LineFile "(" A_LineNumber ")" " : " "observableObj >>> `r`n") LogPrintln(oldChange,A_LineFile "(" A_LineNumber ")" " : " "oldChange >>> `r`n") LogPrintln(newChange,A_LineFile "(" A_LineNumber ")" " : " "newChange >>> `r`n") return } ``` ```AutoHotKey D:\AHKs\Dev\TPDD_ObservableObj.ahk(27) : theObj >>> FirstString D:\AHKs\Dev\TPDD_ObservableObj.ahk(33) : observableObj >>> {__Instance:ObservableObj,listenerList:[{__Instance:Function,bindParas:{*Obj*},func:callback()},{__Instance:Function,bindParas:{*Obj*},func:callback()}],Obj:FirstString} D:\AHKs\Dev\TPDD_ObservableObj.ahk(34) : oldChange >>> FirstString D:\AHKs\Dev\TPDD_ObservableObj.ahk(35) : newChange >>> SecondString D:\AHKs\Dev\TPDD_ObservableObj.ahk(33) : observableObj >>> {__Instance:ObservableObj,listenerList:[{__Instance:Function,bindParas:{*Obj*},func:callback()},{__Instance:Function,bindParas:{*Obj*},func:callback()}],Obj:FirstString} D:\AHKs\Dev\TPDD_ObservableObj.ahk(34) : oldChange >>> FirstString D:\AHKs\Dev\TPDD_ObservableObj.ahk(35) : newChange >>> SecondString ```