施詠翔Java陣列array迴圈for-each loop方法length

 

//施詠翔2022/11/11陣列array宣告,型態後面加[] public class Main { public static void main(String[] args) { String[] cars = {"富豪","寶馬","福特","罵自答","撈屎來食"}; String[] classmates={"陳時中","獎萬安","黃珊珊","徐巧芯","雞排妹"}; int j = cars.length; /* 方法length得到陣列長度*/ for (int i=0; i

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施詠翔Python集合set清單list元組tuple字典dictionary

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w3schools練習截圖 w3schools程式碼 #施詠翔集合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. """ from tkinter import * #從函式庫 tkinter 輸入所有 * 方法 from math import * #從函式庫 math 輸入所有 * 方法 t = (3,4,5,6,7,8,9,10,11,12,16,20) #宣告一元組tuple(...) tk = Tk() tk.title("施詠翔視窗使用者介面GUI") canvas = Canvas(tk, width=500, h...
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施詠翔類別,必須有 兩底線init兩底線的起始initiate函數

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class Person: #建立類別,必須有 兩底線init兩底線的起始initiate函數 def __init__(self, name, age): self.name = name self.age = age def myfunc(self): print("靠！我的") print("名字是" + self.name) print("靠！我的\n名字是" + self.name) #字串中\n換列 p1 = Person("施詠翔", 36) p1.myfunc() print("印出p1.name: " + p1.name) from tkinter import * #從函式庫 tkinter 輸入所有 * 方法 import math #從函式庫 math 輸入所有 * 方法 from time import * from random import * class Regular: def __init__(self, cx, cy, cr, s, t, c, w): #類別共同的設定必然 def __init__ initiate發起 self.cx, self.cy, self.cr = cx, cy, cr #取得中心座標cx, cy, 半徑cr self.s, self.t = s, t #取得邊角數目s,t尖銳程度,取代原來的k = s.get() self.c, self.w = c, w #取得顏色c,寬度w self.u = 2 * math.pi / self.s #使用模組 math 圓周率 pi self.x, self.y = [], [] for i in range( int(self.s * 1.5)): self.x.append(self.cx + self.cr*math.cos(i*self.u)) self.y.append(self.cy + self.cr*math.si...
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