陳俊宇不動產設計HTML.CSS.JavaScript.Java

w3schools練習截圖 w3schools程式碼 #陳俊宇集合set{},元組tuple(), 串列或清單list[], #字典dict{key:value,鍵:值} d = {2330:"台積電",2317:"鴻海",2454:"聯發科",6505:"台塑化"} s = {"台積電", "鴻海", "聯發科","台塑化"} t = ("台積電", "鴻海", "聯發科","台塑化") list = ["台積電", "鴻海", "聯發科","台塑化"] print(type(d),type(s),type(d),type(list)) print("台灣市場價值最大三家公司集合set列出") print(s) #練習迴圈 for a in s: print(a) print("聯發科位置:" + str(t.index("聯發科"))) """整個區塊註解前後加上連續三個引號, str將數字轉成字串 才能 和其他字串相接the set list is unordered, meaning: the items will appear in a random order. # Refresh this page to see the change in the result. w3schools集合方法 w3schools串列或清單方法 w3schools集合方法 教學影片

#陳俊宇strings可以用單引雙引只要對稱 b = '狗吃屎,兔吃菜,貓抓鼠,陳俊宇很帥' # 0 1 23 4 5 678 9 10,11,12, print('字串長度' + str(len(b))) #len函數 字串長度 輸出 整數 #str函數 轉成字串 這樣才能串接 print(b[-5:-2]) #練習字串格式format quantity = "精華下午茶" itemno = 5 price = "陳俊宇" myorder = "我要吃 {} 吃幾個 {}，和 {} 誰一起吃" print(myorder.format(quantity, itemno, price))