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function User1(name, password) {
this.name = name;
this.password = password;
this.login = function(name,password){
if(this.name == name && this.password == password) {
return true;
}else {
return false;
}
};
}
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function User2() {
}
User2.prototype.name = "prototype name";
User2.prototype.password = "prototype password";
User2.prototype.login = function(name,password){
if(this.name == name && this.password == password) {
return true;
} else {
return false;
}
};
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var ¶ÔÏóÃû = {};
    ¶ÔÏóÃû.prototype.±äÁ¿1=±äÁ¿1µÄÖµ;
    ¶ÔÏóÃû.prototype.±äÁ¿2=±äÁ¿2µÄÖµ;
    ……;
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    data.prototype. age =20;
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