python证照必考题 得票数计算 选举题目 投票问题TQC+ 程序语言 Python 3 _ 409

*TQC+ 程序语言 Python 3 _ 409 得票数计算 *
说明： 某次选举有两位候选人，分别是No.1: Nami、No.2: Chopper。
请撰写一程序，输入五张选票，输入值如为1即表示针对1号候选人投票；
输入值如为2即表示针对2号候选人投票，如输入其他值则视为废票。
每次投完後需印出目前每位候选人的得票数，最後印出最高票者为当选人；
如最终计算有相同的最高票数者或无法选出最高票者，显示
【=> No one won the election.】。
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输入与输出会交杂如下，输出的部份以粗体字表示（程序执行状况撷图）
2
Total votes of No.1: Nami = 0
Total votes of No.2: Chopper = 1
Total null votes = 0
1
Total votes of No.1: Nami = 1
Total votes of No.2: Chopper = 1
Total null votes = 0
8
Total votes of No.1: Nami = 1
Total votes of No.2: Chopper = 1
Total null votes = 1
2
Total votes of No.1: Nami = 1
Total votes of No.2: Chopper = 2
Total null votes = 1
2
Total votes of No.1: Nami = 1
Total votes of No.2: Chopper = 3
Total null votes = 1 => No.2 Chopper won the election.

python解题一： 考试上机作答没问题，但现实状况不符。

nami_vote = 0 
chopper_vote = 0
null_vote = 0

for i in range(5):   ＃for 回圈。五次投票
    vote = int(input())

    if vote == 1:
        nami_vote += 1
    elif vote == 2:
        chopper_vote += 1
    else:
        null_vote += 1

    print('Total votes of No.1: Nami = ', nami_vote)    
    print('Total votes of No.2: Chopper = ', chopper_vote)
    print('Total null votes = ', null_vote)

if nami_vote > chopper_vote:    
    print('=> No.1 Nami won the election.')
elif chopper_vote > nami_vote:
    print('=> No.2 Chopper won the election.')
else:
    print('=> No one won the election.')   
    
   #这种方法在废票多於前两位候选人会出现，bug 。错判 某位候选人照样胜出。
null 3
nami 2
chopper 1. 判定： nami胜出的谬误

**解法二：**

nami,chop,null= 0,0,0

for i in range(5):
     vote = int(input())
     if vote == 1: nami +=1
     elif vote == 1: chop +=1
     elif: null +=1
     
     print("Total vote of No.1: Nami =",nami)
     print("Total vote of No.2: Chopper =",chop)
     print("Total nul votes =" ,null)

if null >= nami and null >=chop or nami == chop: #先界定各种废票
       print("=> No one won the election.")
elif nami> chop: 
       print("=> No.1 Nami won the election.")
else:
       print("=> No.2 Chopper won the election.")

 **   解法三：**
    

nami,chop,null =0,0,0

for i in range(5):
         vote = input()
         if vote == "1":nami +=1
         elif vote =="2": chop +=1 #把 投票变成字串，确定头１or2有效，其他写错的不会生效。
          elif: null += 1
     
     print("Total vote of No.1: Nami =",nami)
     print("Total vote of No.2: Chopper =",chop)
     print("Total nul votes =" ,null)

if null >= nami and null >=chop or nami == chop:
       print("=> No one won the election.")
elif nami> chop:
       print("=> No.1 Nami won the election.")
else:
       print("=> No.2 Chopper won the election.")