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UPDATE newhouse_clicks SET clicks = CASE id WHEN 1 THEN 1000 WHEN 2 THEN 2000 WHEN 3 THEN 3000 END WHERE id IN (1,2,3) 咱们详解一下这条sql语句的意思:更新newhouse_cli 阅读全文
摘要:
# 多线程 import threading import time def work(): print("我是多线程运行") time.sleep(1) return start_time = time.time() for i in range(5): t = threading.Thread( 阅读全文