比如一个学生类,我这样设计:function Stundent(name){
this.name=name;
}
Stundent.prototype.run=function(){
alert(this.name+'跑步');
}
Stundent.prototype.walk=function(){
alert(this.name+'行走');
}
var Szs=new Stundent('张三')
Szs.run();
Szs.walk();
如果只能用函数,不能用类的形式,我该怎样设计,这样吗:function run(name){
alert(name+'跑步');
}
function walk(name){
alert(name+'行走');
}
run('李四')
还是这样:function student(name, kind){
if(kind=='跑步'){
run(name)
}
if(kind=='行走'){
walk(name)
}
}
function run(name){
alert(name+'跑步');
}
function walk(name){
alert(name+'行走');
}
student('李四','跑步')
有必要加这个student函数吗?还是有什么更好的方法?
this.name=name;
}
Stundent.prototype.run=function(){
alert(this.name+'跑步');
}
Stundent.prototype.walk=function(){
alert(this.name+'行走');
}
var Szs=new Stundent('张三')
Szs.run();
Szs.walk();
如果只能用函数,不能用类的形式,我该怎样设计,这样吗:function run(name){
alert(name+'跑步');
}
function walk(name){
alert(name+'行走');
}
run('李四')
还是这样:function student(name, kind){
if(kind=='跑步'){
run(name)
}
if(kind=='行走'){
walk(name)
}
}
function run(name){
alert(name+'跑步');
}
function walk(name){
alert(name+'行走');
}
student('李四','跑步')
有必要加这个student函数吗?还是有什么更好的方法?
alert(name+'跑步');
}
function walk(name){
alert(name+'行走');
}
run('李四')
var Stundent = (function(){
return {
name : '' ,
init : function(name){
this.name = name;
},
run : function(){
alert(this.name+'跑步');
},
walk : function(){
alert(this.name+'行走');
}
};
})();
Stundent.init('李四');
Stundent.run();
Stundent.walk();
function computeCost() {
var dom = document.getElementById("fruit");
dom.cost.value = dom.apple.value + dom.orange.value;
}
function stundent(name){
arguments.callee.myname=name;
return arguments.callee;
}
stundent.run=function(){
alert(stundent.myname+'跑步');
}
stundent.walk=function(){
alert(stundent.myname+'行走');
}
var Szs=stundent('张三')
Szs.run();
Szs.walk();
function stundent(name){
arguments.callee.myname=name;
return arguments.callee;
}
stundent.run=function(){
alert(stundent.myname+'跑步');
}
stundent.walk=function(){
alert(stundent.myname+'行走');
}
var Szs=stundent('张三')
Szs.run();
Szs.walk();
Javascript中没有类这个概念,虽然新的ECMAScript会添加类,但现在最好别这么叫