<html><body><script>function person(firstname,lastname,age,eyecolor){this.firstname=firstname;this.lastname=lastname;this.age=age;this.eyecolor=eyecolor;?this.changeName=changeName;function changeName(name){this.lastname=name;}}myMother=new person("Steve","Jobs",56,"green");myMother.changeName("Ballmer");document.write(myMother.lastname);</script></body></html>這段代碼中this.firstname=firstname;this.lastname=lastname;this.age=age;this.eyecolor=eyecolor;?this.changeName=changeName;這幾句是什么意思有什么用，和后面那個(gè)函數(shù)的關(guān)系是什么？
哪位大神能夠幫忙解決一下這個(gè)問題？
我愛你不如愛自己
2017-10-07 20:04:02
