Hand Cricket游戏代码报错：NameError: 'runs'变量未定义

问题描述 #

运行Hand Cricket游戏时触发错误：

runs1= runs NameError: name 'runs' is not defined. Did you mean: 'round'?

核心问题是变量作用域限制：第一局函数（batinning1/bowlinning1）内部定义的runs是局部变量，第二局函数（batinning2/bowlinning2）无法访问；同时第二局函数还存在得分更新、循环条件颠倒等逻辑错误。

修复步骤 #

1. 全局变量存储第一局得分：在函数外部定义first_innings_runs全局变量，用于保存第一局的目标得分
2. 修改第一局函数：使用global关键字声明全局变量，将第一局计算出的得分赋值给它
3. 修正第二局逻辑：
   • 将错误的runs+= bat1改为runs2 += bat1，确保第二局得分正确累加
   • 调整循环条件，让游戏在达到目标得分或出局时及时终止
   • 修正胜负判断逻辑，避免条件颠倒
4. 优化游戏体验：添加实时分数显示，让玩家清晰知晓当前进度

修复后的完整代码 #

import random
import time

# 全局变量存储第一局得分
first_innings_runs = 0

print("Welcome to Hand Cricket!")
toss= input("Heads or Tails?")
cointoss = ["heads", "tails"]
inning = ["bat", "ball"]
coin= random.choice(cointoss)
Toss= toss.lower()
 
if Toss.strip() not in cointoss:
    while Toss.strip() not in cointoss:
        print("Input a valid choice")
        toss= input('Heads or Tails?')
        Toss= toss.lower()

if Toss.lower()== coin.lower():
    choice= input('You have won the toss! Do you choose to bat or ball')
    Choice= choice.lower()
    while Choice.strip() not in inning:
        print("Input a valid choice")
        choice= input('Do you choose to bat or bowl')
        Choice= choice.lower()
else:
    print("You have lost the toss :( Computer is choosing")
    time.sleep(2)
    choice= random.choice(inning)
    Choice= choice.lower()
    print("Well then, computer has chosen to",Choice,"first!")


def batinning1():
    global first_innings_runs
    print("First Innings Starts now! Start Batting!")
    runs= 0
    for i in range(1,121):
        bat1= int(input("Enter number of runs you want to take"))
        if bat1 not in range(0,7):
            while bat1 not in range(0,7):
                print("What is that shot? Enter between 0 and 6")
                bat1= int(input("Enter number of runs you want to take"))
        bowl1= random.randint(0, 6)
        time.sleep(2)
        if bat1==bowl1:
            print("HOWZAAT!!! You are out!")
            print("Computer chose", bowl1)
            break
        else:
            runs+= bat1
            if bat1==0:
                print("Batsman Defended that one quite well!")
            elif bat1==1:
                print("Batsman takes a quick single")
            elif bat1==2:
                print("Batsman tries to hit the ball, and takes quick double")
            elif bat1==3:
                print("Batsman has taken a rare triple")
            elif bat1==4:
                print("ITS A FOUUURRRRR!!! Batsman has hit that one for a boundary!")
            elif bat1==5:
                print("An overthrow by the fielders, and its a boundary, meaning 5 runs!")
            elif bat1==6:
                print("ITS A SIX! WHAT A SHOT BY THE BATSMAN!")
    first_innings_runs = runs
    print("You have scored", runs ,"runs! Now you have to defend", runs+1,"runs")

    
def bowlinning1():
    global first_innings_runs
    print("First Innings Starts now! Start Bowling!")
    runs= 0
    for i in range(1,121):
        bowl1= int(input("What do you think the computer will score?"))
        if bowl1 not in range(0,7):
            while bowl1 not in range(0,7):
                print("What is that shot? Enter between 0 and 6")
                bowl1 = int(input("What do you think the computer will score?"))
        bat1= random.randint(0, 6)
        time.sleep(2)
        if bat1==bowl1:
            print("HOWZAAT!!! ITS A WICKET!")
            break
        else:
            runs+= bat1
            if bat1==0:
                print("Batsman Defended that one quite well!")
            elif bat1==1:
                print("Batsman takes a quick single")
            elif bat1==2:
                print("Batsman tries to hit the ball, and takes quick double")
            elif bat1==3:
                print("Batsman has taken a rare triple")
            elif bat1==4:
                print("ITS A FOUUURRRRR!!! Batsman has hit that one for a boundary!")
            elif bat1==5:
                print("An overthrow by the fielders, and its a boundary, meaning 5 runs!")
            elif bat1==6:
                print("ITS A SIX! WHAT A SHOT BY THE BATSMAN!")
    first_innings_runs = runs
    print("Computer has scored", runs,"runs! You now need to score", runs+1,"runs to win!")

def batinning2():
    print("Second Innings Starts now! Start Batting!")
    runs2= 0
    target = first_innings_runs + 1
    for i in range(1,121):
        if runs2 >= target:
            break
        bat1= int(input("Enter number of runs you want to take"))
        if bat1 not in range(0,7):
            while bat1 not in range(0,7):
                print("What is that shot? Enter between 0 and 6")
                bat1= int(input("Enter number of runs you want to take"))
        bowl1= random.randint(0, 6)
        time.sleep(2)
        if bat1==bowl1:
            print("HOWZAAT!!! You are out! You lose this match :(")
            print("Computer chose", bowl1)
            break
        else:
            runs2 += bat1
            if bat1==0:
                print("Batsman Defended that one quite well!")
            elif bat1==1:
                print("Batsman takes a quick single")
            elif bat1==2:
                print("Batsman tries to hit the ball, and takes quick double")
            elif bat1==3:
                print("Batsman has taken a rare triple")
            elif bat1==4:
                print("ITS A FOUUURRRRR!!! Batsman has hit that one for a boundary!")
            elif bat1==5:
                print("An overthrow by the fielders, and its a boundary, meaning 5 runs!")
            elif bat1==6:
                print("ITS A SIX! WHAT A SHOT BY THE BATSMAN!")
        print(f"Current score: {runs2}/{target}")
    if runs2 >= target:
        print("AND THE BATSMAN FINISHES IN STYLE! ITS A WIN FOR YOU!!!")

def bowlinning2():
    print("Second Innings Starts now! Start Bowling!")
    runs2= 0
    target = first_innings_runs + 1
    for i in range(1,121):
        if runs2 >= target:
            print(f"Computer scored {runs2} runs, reaching the target of {target}! You lose this match :(")
            break
        bowl1= int(input("What do you think the computer will score?"))
        if bowl1 not in range(0,7):
            while bowl1 not in range(0,7):
                print("What is that shot? Enter between 0 and 6")
                bowl1 = int(input("What do you think the computer will score?"))
        bat1= random.randint(0, 6)
        time.sleep(2)
        if bat1==bowl1:
            print(f"HOWZAAT!!! ITS A WICKET! YOU WIN THIS MATCH BY {first_innings_runs - runs2} runs!")
            break
        else:
            runs2 += bat1
            if bat1==0:
                print("Batsman Defended that one quite well!")
            elif bat1==1:
                print("Batsman takes a quick single")
            elif bat1==2:
                print("Batsman tries to hit the ball, and takes quick double")
            elif bat1==3:
                print("Batsman has taken a rare triple")
            elif bat1==4:
                print("ITS A FOUUURRRRR!!! Batsman has hit that one for a boundary!")
            elif bat1==5:
                print("An overthrow by the fielders, and its a boundary, meaning 5 runs!")
            elif bat1==6:
                print("ITS A SIX! WHAT A SHOT BY THE BATSMAN!")
        print(f"Computer's current score: {runs2}/{target}")
        
if Toss.lower()== coin.lower():
    if Choice == 'bat':
        batinning1()
    elif Choice== 'ball':
        bowlinning1()
else:
    if Choice == 'bat':
        bowlinning1()
    elif Choice== 'ball':
        batinning1()

time.sleep(2)
        
if Toss.lower()== coin.lower():
    if choice.lower() == 'bat':
        bowlinning2()
    elif choice.lower()== 'ball':
        batinning2()
else:
    if choice.lower() == 'bat':
        batinning2()
    elif choice.lower()== 'ball':
        bowlinning2()

关键修复点说明 #

• 全局变量first_innings_runs：打破函数作用域限制，实现第一局得分向第二局的传递
• 第二局得分修正：将错误的runs累加改为runs2累加，确保第二局得分独立计算
• 游戏流程优化：添加实时分数显示，调整循环终止条件，让游戏逻辑更严谨

内容的提问来源于stack exchange，提问作者SunnyandBunny