莊庭寬HTML.CSS.JavaScript.Java

w3schools截圖 w3schools程式碼 #莊庭寬 集合{},清單[],元組(),字典{key:value} s = {"台積電", "鴻海", "聯發科", "中華電", "台塑化"} t = ("台積電", "鴻海", "聯發科", "中華電", "台塑化") list = ["台積電", "鴻海", "聯發科"] d = {2330:"台積電", 2317:"鴻海", 2454:"聯發科"} print("s型態" + str(type(s))) print("t型態" + str(type(t))) print("d型態" + str(type(d))) print("t型態" + str(type(list))) #字串與字串+ i = 0 for a in t: i = i + 1 print("台灣市場價格第" + str(i) + "大公司是") print(" " + a) print("聯發科的位置" + str(t.index("聯發科"))) '''python大區塊的註解，前後用三個引號 str 轉成字串 int 轉成數字''' w3schools元組tuples的方法 Python has two built-in methods that you can use on tuples. Method Description count() Returns the number of times a specified value occurs in a tuple index() Searches the tuple for ...

w3schools截圖 w3schools程式碼 #莊庭寬 字典 keys:value市場價值最大的公司 a = { 2330: "台積電", 2317: "鴻海", 2454: "聯發科", 2412: "中華電", 6505:"台塑化",2308: "台達電"} print(a) print("迴圈列出字典的所有值") for t in a: print(a[t]) b = a.copy() #字典不能直接assign print(b) a.update({2881:"富邦金控"})#台灣第七大 a.update({2303:"聯電"}) #台灣大八大 for t in a: print(a[t]) a.setdefault(1303,"南亞") a.setdefault(2882,"國泰金") i = 0 for t in a: #python迴圈不使用{...}縮排整齊整齊 i = i + 1 print("台灣第" + str(i) + a[t]) w3schools字典方法列表 Python has a set of built-in methods that you can use on dictionaries. Method Description clear() 移除字典內容Removes all the elements from the dictionary copy() 拷貝Returns a copy of the dictionary fromkeys() Returns a dictionary with the specified keys and value get() 取得鍵Returns the value of the specified key items() Returns a list containing a tuple for each key value pair keys() Returns a li...

w3schools練習SVG w3schools練習canvas 心得 canvas帆布 ol=office lady, 這裡是 ordered list順序的清單 標楷體命令「font-family: DFKai-sb」 幕前排版系統word,編輯網頁的撰寫模式，幕後排版系統控制你的命令 教學影片 維基百科SVG 維基百科canvas Sorry, your browser does not support inline SVG.

Python程式碼 b = "劉德華大烏龜" #python字串單或雙引號都可 # 0 1 2 3 4 5 6 # -6-5-4-3-2-1 print("字串長度:"+str(len(b))) #相同字串型態才能串接 print("反過來:"+b[::-1]) print(b[:3]) #b字串的0,1,2 print(b[-4:-1]) print(b[-8:-4]) x = '火鍋' y = 9999 myorder = "我希望 {2} 陪我去吃 {0} 他付錢 {1}." print(myorder.format(x, y, b)) # format的參數 0, 1, 2 字串的方法列表 Method Description capitalize() Converts the first character to upper case casefold() Converts string into lower case center() Returns a centered string count() Returns the number of times a specified value occurs in a string encode() Returns an encoded version of the string endswith() Returns true if the string ends with the specified value expandtabs() Sets the tab size of the string find() Searches the string for a specified value and returns the position of where it was found format() Formats specified values in a string format_map() Formats specified values in a string index() Searches the string for a specified value...