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@ChatGPT cpp 最小费用最大流算法
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以下代码怎么优化？
def doit(self): fileName='last_pid' ofile = open(fileName, "r") last_pid = ofile.read() _last_pid = self.get_unread(last_pid=int(last_pid)) print ("最新PID: ", _last_pid) if _last_pid > int(last_pid): with open(fileName,'w',encoding='utf-8') as file: file.write(str(_last_pid)) time.sleep(5) self.doit()风来雨就来，屁来屎就来！💪
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以下代码怎么优化？
def doit(self): fileName='last_pid' ofile = open(fileName, "r") last_pid = ofile.read() _last_pid = self.get_unread(last_pid=int(last_pid)) print ("最新PID: ", _last_pid) if _last_pid > int(last_pid): with open(fileName,'w',encoding='utf-8') as file: file.write(str(_last_pid)) time.sleep(5) self.doit()可以优化为：
def doit(self): fileName='last_pid' with open(fileName, "r") as ofile: last_pid = int(ofile.read()) _last_pid = self.get_unread(last_pid=last_pid) print ("最新PID: ", _last_pid) if _last_pid > last_pid: with open(fileName,'w',encoding='utf-8') as file: file.write(str(_last_pid)) time.sleep(5) self.doit()优化内容：
- 使用with语句，可以自动关闭文件，不用每次手动关闭文件。
- 将ofile.read()从字符串转换为整型，减少后面的数据类型转换。
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