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发表于 2020-8-19 15:51:11
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显示全部楼层
因为程序运行的时间不足 1 秒,所以不会显示,加上 sleep(1)(表示让程序暂停一秒)就能显示了
- import time as t
- class MyTimer():
- def __init__(self):
- self.unit = ["年","月","天","小时","分钟","秒"]
- self.prompt = "未开始计时!"
- self.lasted = []
- self.begin = 0
- self.end = 0
- def __str__(self):
- return self.prompt
- __repr__ = __str__
- def __add__(self, other):
- prompt = "总共运行了"
- result = []
- for index in range(6):
- result.append(self.lasted[index] + other.lasted[index])
- if result[index]:
- prompt += (str(result[index]) + self.unit[index])
- return prompt
- # 开始计时
- def start(self):
- self.begin = t.localtime()
- self.prompt = "提示:请先调用stop()停止计时!"
- print("计时开始...")
- # 停止计时
- def stop(self):
- if not self.begin:
- print("提示:请先调用start()进行计时!")
- else:
- self.end = t.localtime()
- self._calc()
- print("计时结束!")
- # 内部方法,计算运行时间
- def _calc(self):
- self.lasted = []
- self.prompt = "总共运行了"
- for index in range(6):
- self.lasted.append(self.end[index] - self.begin[index])
- if self.lasted[index]:
- self.prompt += (str(self.lasted[index]) + self.unit[index])
- # 为下一轮计时初始化变量
- self.begin = 0
- self.end = 0
- t1 = MyTimer()
- t1.start()
- t.sleep(1)
- t1.stop()
- print(t1)
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