風險管理

w3schools截圖 w3schools程式碼 #廖家慧 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...

w3schools截圖 w3schools程式碼 #廖家慧 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 list c...

w3schools練習SVG Winnie Sorry, your browser does not support inline SVG. w3schools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

w3schools Python程式碼 b = "歡喜年少是你"#Python字串或雙引號都可 # 0 1 2 3 4 5 6 # -6 -5 -4 -3 -2 -1 print("字串長度"+str(len(b))) print("反過來"+b[::-1]) print(b[:3]) #b的字串的0,1,2 print(b[-4:-1]) print(b[-8:-4]) x="烤肉" y=66666 myorder="他希望 {2} 陪你去吃 {0} 他付錢 {1}." print(myorder.format(x,y,b)) # format的參數 0,1,2 字串的方法與函數w3schools https://www.w3schools.com/python/python_strings_methods.asp 方法Method 說明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 spec...