class Time: def __init__(self, hours, minutes, seconds): self.hours = hours self.minutes = minutes self.seconds = seconds def __add__(self, other): seconds = self.seconds + other.seconds minutes = self.minutes + other.minutes hours = self.hours + other.hours if seconds >= 60: seconds -= 60 minutes += 1 if minutes >= 60: minutes -= 60 hours += 1 return Time(hours, minutes, seconds) def __sub__(self, other): seconds = self.seconds - other.seconds minutes = self.minutes - other.minutes hours = self.hours - other.hours if seconds < 0: seconds += 60 minutes -= 1 if minutes < 0: minutes += 60 hours -= 1 return Time(hours, minutes, seconds)
时间: 2023-04-04 08:04:51 浏览: 67
这是一个关于 Python 编程的问题,我可以回答。这段代码定义了一个 Time 类,包含了时、分、秒三个属性,以及加法和减法两个方法。其中加法方法会将两个 Time 对象的时、分、秒相加,如果秒或分超过 60,则会进位到下一位。减法方法会将两个 Time 对象的时、分、秒相减,如果秒或分小于 0,则会借位到上一位。
相关问题
用python定义一个表示时间的类Time,它提供下面操作:1.Time(hours,minutes,seconds)创建一个时间对象2.t.hours()、t.minutes()、t.seconds()分别返回对象t的小时、分钟和秒值3.为Time对象定义加法和减法操作(用运算符+和-)
可以回答这个问题。
定义一个表示时间的类Time,代码如下:
```python
class Time:
def __init__(self, hours, minutes, seconds):
self.hours = hours
self.minutes = minutes
self.seconds = seconds
def __add__(self, other):
seconds = self.seconds + other.seconds
minutes = self.minutes + other.minutes
hours = self.hours + other.hours
if seconds >= 60:
seconds -= 60
minutes += 1
if minutes >= 60:
minutes -= 60
hours += 1
return Time(hours, minutes, seconds)
def __sub__(self, other):
seconds = self.seconds - other.seconds
minutes = self.minutes - other.minutes
hours = self.hours - other.hours
if seconds < 0:
seconds += 60
minutes -= 1
if minutes < 0:
minutes += 60
hours -= 1
return Time(hours, minutes, seconds)
```
使用方法:
```python
t1 = Time(1, 30, 0)
t2 = Time(0, 45, 30)
t3 = t1 + t2
t4 = t1 - t2
print(t3.hours, t3.minutes, t3.seconds) # 2 15 30
print(t4.hours, t4.minutes, t4.seconds) # 0 44 30
```
写一个类,名字为clock,有三个属性分别为10分秒,有两个方法分别为 走时 和显示时间,请输入一个猝死事件时终会实现按秒走时并显示时间情况。
class Clock:
def __init__(self):
self.hours = 0
self.minutes = 0
self.seconds = 0
def tick(self):
self.seconds += 1
if self.seconds == 60:
self.seconds = 0
self.minutes += 1
if self.minutes == 60:
self.minutes = 0
self.hours += 1
if self.hours == 24:
self.hours = 0
def display_time(self):
print(f"{self.hours:02d}:{self.minutes:02d}:{self.seconds:02d}")
clock = Clock()
for i in range(10):
clock.tick()
clock.display_time() # 输出 00:00:10
for i in range(50):
clock.tick()
clock.display_time() # 输出 00:01:00
for i in range(60):
clock.tick()
clock.display_time() # 输出 00:02:00
# 猝死事件发生,按秒走时并显示时间
while True:
clock.tick()
clock.display_time()
相关推荐
![pdf](https://img-home.csdnimg.cn/images/20210720083512.png)
![zip](https://img-home.csdnimg.cn/images/20210720083736.png)
![-](https://csdnimg.cn/download_wenku/file_type_column_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)