CountryCode requires a two-character code such as US or FR.
CountryCode需要一个两字符代码,比如us或FR。
There are two main differences between these two character data types.
在这两个字符数据类型之间有两个主要区别。
Both use a two character language and two character country code connected by an underscore.
两者都使用两个字符语言代码和两个字符的国家代码通过下划进行连接。
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