林苡嫻程式設計HTML.CSS.JavaScript.Java

w3schools陣列截圖 w3schools陣列程式碼 #劉任昌w3schools練習 #for x in 'Takming gold': #迴圈逐字字元 # print("字母: %s" % x) fruits = ['台積電', '鴻海', '聯發科'] for x in fruits: # 迴圈印出元素 print ("當前公司: %s"% x) print ("append") #append在末尾增加 fruits.append("中華電") #append接元素 print(fruits) print("移除所有元素clear") fruits.clear() #Removes all the elements from the list print(fruits) fruits = ['台積電', '鴻海', '聯發科',"中華電"] print(fruits) pig = fruits.copy() print("輸出pig用copy方法" + str(pig)) print("使用copy和直接賦予值 pig = fruits有何不同? ") dog = fruits print("輸出dog直接=" + str(dog)) print("fruits.extend(pig)") fruits.extend(pig) #extend接陣列或清單 print(fruits) fruits.extend(['台塑化','台達電','富邦金']) print(fruits) #print("幾個台積電? " + str(fruits.count("台積電))) print(fruits.index("富邦金")) fruits.insert(10,"國泰金") print(fruits) print...

w3schools截圖 w3schools程式碼 #林苡嫻 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 #林苡嫻 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   Method Description clear() Removes all the elements 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 each key value pair keys() Returns a list containing the dictionary's keys pop() Removes the element with the specified key ...

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#林苡嫻2023.03.06 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

w3schools學習python vs code編寫python vs code編寫python程式碼 #乙班林苡嫻2023/2/20 w3schools學python a = "乙班我就愛倉鼠倉鼠倉鼠" #python不需要宣告變數 print(a) #python指令結束不需要; b = a[::-1] #這是python特有功能 print(b) c = a[2:7:] #字串a的0,1,2取,3,4,5沒有6 print(c) d =a[7:2:-1] print(d) a=input("輸入文字串: +a") print(反向字串: +a[::-1]) 上課影片205

網頁介面 林苡嫻輸入字串: 程式碼 <p>林苡嫻輸入字串:<input type="text" len="40" id="in"></p> <p><input type="button" value="執行JavaScript" onclick="f()"></p> <p id="out"></p> <script> function f(){   var a = document.getElementById("in").value;/*取得id=in的文字*/   var b ="原字串: " a+ "<br>長度是: " + a.length + ",反串是: ";   var c = "";   for (var i = 0; i < a.length; i++)     c = a.slice(i,i+1) + c ;   b = b + c;   document.getElementById("out").innerHTML = b; } </script> MyClassjava