我只是很难弄清楚 排名第二的是什么
ConfigurationManager.ConnectionStrings(2).ConnectionString
定义?
这是什么意思?
在配置中的连接字符串收藏中,它是 n-th 索引中的连接字符串(在您的情况 2) 。
查看您 Web. config/ ap. Config 的“ 连接Strings ” 区域中的“ 连接Strings ” 区域,您可以看到您用 index = 2 定义的连接字符串
我更喜欢用名称而不是整数索引来引用, 因为它比较清楚您要瞄准哪个连接字符串 。
ex: ConfigationManager. 连字符串 (“ 某些连字符串Name ”) 。连字符串
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