1、 之前示例中将数据库驱动、连接地址、用户名和密码直接写在类里，导致代码耦合度高。一旦数据库更换或类型改变，就必须修改源码，维护和扩展极为不便。 2、 将数据库的驱动、连接地址、用户名及密码存入配置文件，程序通过读取该文件获取信息。

In a nutshell: Iran's internet outage has stretched past 1,000 hours, making it one of the longest nationwide network shutdowns recorded since global monitoring began. Data from NetBlocks and ...

Semtech Corp. has signed an agreement with Trident IoT that will allow its long range (LoRa) plus transceivers to have royalty-free access to Trident IoT’s software development kit and tools. The ...

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The AEON Group holds “Pursuing peace, respecting humanity, and contributing to local communities, always with the customer's point of view as its core” as its foundational ideals, and operates ...