摘要:
import pymysql connection = pymysql.connect( host='localhost', port=3306, database='your_database', user='your_user', password='your_password', charse
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摘要:
1.列表推导式:生成新的列表 [expression for item in iterable] numbers = [1, 2, 3, 4, 5] squares = [x**2 for x in numbers] print(squares) # 输出: [1, 4, 9, 16, 25] 2.
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