Python time replace()用法及代码示例

Python time.replace() 方法

time.replace() 方法用于操作模块 datetime 的时间类对象。

它用于用相同的值替换时间，除了那些由括号中指定的关键字参数赋予新值的参数。它是一个实例方法，这意味着它适用于类的实例。

模块：

    import datetime

类：

    from datetime import time

用法:

    replace(
        hour=self.hour, 
        minute=self.minute, 
        second=self.second, 
        microsecond=self.microsecond, 
        tzinfo=self.tzinfo, 
        * fold=0
        )

参数：

• hour:在范围内(24)
• minute:在范围内(60)
• second:在范围内(60)
• microsecond：在范围内(1000000)
• tzinfo:object 作为 tzinfo 参数传递给 datetime 构造函数，或者 None 如果没有传递
• fold:[0,1]

如果值不在给定范围内，则会引发 ValueError。

返回值：

该方法的返回类型是替换参数后的时间类对象。

例：

## Python program explaining the 
## use of replace() method

from datetime import time

## Creating an instance
x = time(4,54,23, 37777)
print("Time entered was:", x)
print()

## Using replace() method 
d = x.replace(hour = 22)
print("New time after changing the hour:", d)
print()

d = x.replace(minute=10)
print("New time after changing the minute:", d)
print()

d = x.replace(second=30)
print("Time after changing the second:", d)
print()

d = x.replace(hour=20, minute=30)
print("Time after changing hour and minute:", d)
print()

d = x.replace(hour= 19, minute =12, second=34, microsecond=3333)
print("Time after changes:", d)
print()

输出

Time entered was:04:54:23.037777

New time after changing the hour:22:54:23.037777

New time after changing the minute:04:10:23.037777

Time after changing the second:04:54:30.037777

Time after changing hour and minute:20:30:23.037777

Time after changes:19:12:34.003333