1、怎么查出通过 from xx import xx 导?的可以直接调用的方法?
2、了解Collection模块,编写程序以查询给定列表中最常见的元素。
题目说明:
输入:language = ['PHP', 'PHP', 'Python', 'PHP', 'Python', 'JS', 'Python', 'Python','PHP', 'Python']
输出:Python
"""
Input file
language = ['PHP', 'PHP', 'Python', 'PHP', 'Python', 'JS', 'Python', 'Python','PHP', 'Python']Output file
Python
"""
def most_element(language):""" Return a list of lines after inserting a word in a specific line. """# your code here
3. 假设你获取了用户输入的日期和时间如2020-1-21 9:01:30,以及一个时区信息如UTC+5:00,均是str,请编写一个函数将其转换为timestamp:
"""Input file
example1: dt_str='2020-6-1 08:10:30', tz_str='UTC+7:00'
example2: dt_str='2020-5-31 16:10:30', tz_str='UTC-09:00'Output file
result1: 1590973830.0
result2: 1590973830.0
"""def to_timestamp(dt_str, tz_str):# your code herepass
4. 编写Python程序以选择指定年份的所有星期日。
"""Input file2020Output file2020-01-05 2020-01-12 2020-01-19 2020-01-26 2020-02-02 -----2020-12-06 2020-12-13 2020-12-20 2020-12-27
"""def all_sundays(year):# your code here