问题遇到的现象和发生背景
问题相关代码,请勿粘贴截图
# encoding=utf-8
from threading import Thread, Lock
from time import sleep
#未使用线程同步和互斥
class Account:
def __init__(self, money, name):
self.money = money
self.name = name
class Drawing(Thread):
def __init__(self, drawingNum, account):
Thread.__init__(self)
self.drawingNum = drawingNum
self.account = account
self.expenseTotal = 0
def run(self):
if self.account.money - self.drawingNum < 0:
print("余额不足")
return
sleep(1) # 判断完成后阻塞,其他线程开始运行
self.account.money -= self.drawingNum
self.expenseTotal += self.drawingNum
print(f"账户{self.account.name},余额:{self.account.money}")
print(f"账户{self.account.name},总共取了:{self.expenseTotal}")
if __name__ == '__main__':
a1 = Account(100, "huangjiawen")
draw1 = Drawing(80, a1) # 定义取钱线程对象
draw2 = Drawing(80, a1) # 定义取钱线程对象
draw1.start()
draw2.start()
运行结果及报错内容
C:\Users\黄佳文\AppData\Local\Microsoft\WindowsApps\python3.10.exe D:/pythonProject/pythonProject/MyThreadDemo/多个线程访问同一个资源(未使用线程同步).py
账户huangjiawen,余额:20
账户huangjiawen,总共取了:80
我的解答思路和尝试过的方法
我想要达到的结果