javascript类的创建的多种方式
基本方法很简单，但在javascript中创建类有多种方式。看例子代码，主要是类方法的写法不一样。
1. function people(name){
this.name=name;
this.printInfo=function(){document.write(this.name);};
}
2.
var people=function(name){
this.name=name;
this.printInfo=function(){document.write(this.name)}
}
3.
var people=function(name){
this.name=name;
this.printInfo=printInfo;
}
function printInfo(){document.write(this.name)}
4. var people=function(name){
this.name=name;
}
people.prototype.printInfo=function(){document.write(this.name)}
5. var people=function(name){
this.name=name;
}
people.prototype={
printInfo:function(){document.write(this.name)}
}
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