給JavaScript 對象添加方法

方法只不過是附加在對象上的函數。html

在構造器函數內部定義對象的方法:函數

 1 <!DOCTYPE html>
 2 <html>
 3 <body>
 4 <script>
 5 function person(firstname,lastname,age,eyecolor)  6 {  7 this.firstname=firstname;  8 this.lastname=lastname;  9 this.age=age; 10 this.eyecolor=eyecolor; 11  
12 this.changeName=changeName; 13 function changeName(name) 14 { 15 this.lastname=name; 16 } 17 } 18 myMother=new person("Steve","Jobs",56,"green"); 19 myMother.changeName("Ballmer"); 20 document.write(myMother.lastname); 21 </script>
22 
23 </body>
24 </html>

運行結果:Ballmerthis

相關文章
相關標籤/搜索