關(guān)于面向?qū)ο髥?wèn)題
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JS能實(shí)現(xiàn)多態(tài)嗎？怎么實(shí)現(xiàn)？用什么方法？
Perona
2014-12-25
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2015-01-17
function Person() {
????this.hi = function(){}
}
function One() {}
One.prototype = new People();
One.prototype.hi = function() {
????return "This is one"
}
function Two() {}
Two.prototype = new People();
Two.prototype.hi = function() {
????return "This is two"
}
var o = new One();
if(o instanceof People) {
????alert("hihi, o from People")
}
2014-12-25
JS是偽對(duì)象
2014-12-25
課程中有說(shuō)JS是面向?qū)ο缶幊陶Z(yǔ)言嗎？JavaScript是一門(mén)基于對(duì)象由事件觸發(fā)的腳本語(yǔ)言。