15 lines
361 B
Python
15 lines
361 B
Python
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class DbSingleton():
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def __init__(self, host, port, username, password):
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self.host = host
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self.port = port
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self.username = username
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self.password = password
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self.pool = None # 连接池
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def connect(self):
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print("建立连接")
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db_singleton = DbSingleton('host', 'port', 'username', 'password') |