發表文章

目前顯示的是 3月, 2023的文章

陳瑀晞python集合set元組tuple清單或串列list迴圈輸出str,int

圖片
w3schools截圖 w3schools程式碼 #陳瑀晞 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 a...

陳瑀晞python字典dictionaries

圖片
w3schools截圖 w3schools程式碼 #陳瑀晞 字典 keys:value 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("廻圏列出字典的所有值") 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"})    #台灣第八大 for t in a:   print(a[t]) a.pop(2881)  #移除 print("移除後的字典") 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 fo...

陳瑀晞SVG與CANVAS

圖片
w3school練習SVG 陳瑀晞 Sorry, your browser does not support inline SVG. w3school練習canvas 心得 ol=office lady,這裡是ordered list順序清單 canvas帆布,canvas繪圖工具是apple開發 <canvas>....</canvas> <svg>....</svg> <script>....</script> 影片 維基百科CANVAS 維基百科SVG