程式設計

h1{background-color: green; opacity: 0.3; color: blue; padding: 20px;} pre{border: solid 3px red;} w3schools截圖 程式碼 a = { #台灣股票市場價值最大,劉任昌python 2330: "台積電", 2317: "鴻海", 2454: "聯發科", 2412: '中華電'} print(a) print("用迴圈印出所有值") for t in a: print(a[t] +" 用get()方法 " + a.get(t)) a.update({1108:"幸福"}) print(a) a.popitem() print(a) a.update({6505:"台塑化"}) a.update({2308:"台達電"}) print(a.keys()) print("練習values方法") print(a.values()) print("練習items方法") print(a.items()) w3schools字典方法 確保在</h1>之後貼上才先在html模式放一個標記a Python has a set of built-in methods that you can use on dictionaries. Method 方法 Description說明 clear() 移除字典的Removes all the elements項目(items) from the dictionary copy() Returns a copy of the dictionary fromkeys() Returns a dictionary with the specified keys and value get() Returns the value of the specified key items() Returns a list containing a tuple for e...

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.

b = "我男友是個大帥哥" #python字串單或雙引號都可 # 0 1 2 3 4 # -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 and returns the position...