黃俊珵Javascript物件導向Python物件導向
物件導向程式設計 Javascript指令new Constructor產生新的instance案例 s1.shares.toString()=案例sa的屬性shares內建方法toString()轉成字串,原來的數字被轉成字串string才可以和其他字串相加 Javascript程式碼 <DVI ID='cat'></DVI> <SCRIPT> class Stock{ //宣告類別 constructor(code, shares, price){ this.code = code; this.shares = shares; this.price = price;} } s1 = new Stock("2330", 100, 1000); //建構子Stock建構s1 s2 = new Stock("2880", 1000, 30); //建構子Stock建構s2 st = s1.code+' 股數 '+s1.shares.toString()+'<BR>'+s2.code.toString()+' 股數 '+s2.shares; document.getElementById('cat').innerHTML = st;</SCRIPT> Javascript程式碼加入配對(字典)指令 dict =new Map([["2303","聯電"],["2330","台積電"],["2880","華南金"]]);//宣告配對(字典) w3schools練習