標籤:lex div pos 多少 code 計算 pytho 預設 ide
練習1:
# l1 = [11,22,33]
# l2 = [22,33,44]
# a. 擷取內容相同的元素列表
# b. 擷取 l1 中有, l2 中沒有的元素列表
# c. 擷取 l2 中有, l1 中沒有的元素列表
# d. 擷取 l1 和 l2 中內容都不同的元素
# l1 = [11,22,33]# l2 = [22,33,44]# for i in l2:# if i not in l1:# print(i)# for i in l1:# if i not in l2:# print(i)
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練習2:
12345678互相組合為一個2位元,兩位元值不可重複
# count =0# for i in range(1, 9):# for v in range(1, 9):# if i !=v:# count += 1# # count = count -8# print(count)
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練習3:
99乘法表
# for i in range(1,10):# string = ""# for j in range(1,i+1):# string +=str(j) + " * "+str(i) + " = " +str(i*j)+"\t"# print(string)
方法1
# for i in range(1,10):# for j in range(1,i+1):# print(str(j) + " * "+str(i) + " = " +str(i*j)+"\t",end="")# print("\n",end="")# 預設end=\n# print(‘alex‘, end=‘11‘)# print(‘alex‘,‘haifeng‘,‘gangniang‘,sep=‘11‘)
方法2
練習4:
[1,2,3,4]這裡面的數字兩個組合 多少種不同樣的,數字不重複的
# li = [1,2,3,4]# l =len(li)# for i in range(0,l-1):# for v in range(i+1,l):# print(li[i],li[v])
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練習5:
自動計算方案
百錢買小雞
公雞5文錢1隻,母雞三文錢一隻,小雞一文錢三隻。現在用100文錢共買了100隻雞,
問這100隻雞中,公雞,母雞,小雞各是多少只?
for x in range(1,100//5): for y in range(1,100//3): for z in range(1,100): if x + y + z == 100 and 5*x + 3*y + z/3 == 100: print(x,y,z)
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PYTHON開發基礎04-列表、元組、字典操作練習