#劉任昌集合set{},元組tuple(), 串列或清單list[],
#字典dict{key:value,鍵:值}
d = {2330:"台積電",2317:"鴻海",2454:"聯發科",6505:"台塑化"}
s = {"台積電", "鴻海", "聯發科","台塑化"}
t = ("台積電", "鴻海", "聯發科","台塑化")
list = ["台積電", "鴻海", "聯發科","台塑化"]
print(type(d),type(s),type(d),type(list))
print("台灣市場價值最大三家公司集合set列出")
print(s)
#練習迴圈
for a in s:
print(a)
print("聯發科位置:" + str(t.index("聯發科")))
"""整個區塊註解前後加上連續三個引號, str將數字轉成字串 才能 和其他字串相接the set list is unordered, meaning: the items will appear in a random order.
# Refresh this page to see the change in the result.
"""
w3schools集合方法
Python has a set of built-in methods that you can use on sets.
比較Python與JavaScript指令 for x in range(20): #x整數, str方法 a = "" #python用縮排取代{ }當作區段 for y in range(x): a += str(y) print("第" + str(x) +"列:" + a) # Java, C靜態變數,必須先宣告變數 # Python, JavaScript允許動態變數,可以不用先宣告 Javascript程式碼:不執行,看程式碼,必須在撰寫模式貼上 <h1>HTML與JavaScript</h1> <div id="show"></div> <script> var a = "劉任昌會Python與JavaScript<br>"; for (var x=0; x<10; x++) { /*JavaScript註解Python縮排分區段,{}*/ a +="第" + x +"列:" for (var y=0; y < x; y++) a += y; a += "<br>"; } document.getElementById("show").innerHTML = a; </script> HTML與JavaScript
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