C# 全球化


如果写 C# 时,使用了分析器,很可能会提示

string.ToString() 的行为可能因当前用户的区域设置而异



这个接口用于实现字符串如何格式化转为数值类型。一般来说6660.666 这样的数没问题,但是使用数学符号等情况、全球化字符差异,可能会出错。
IFormatProvider 正是为了解决这些问题。

Convert.ToInt32string.ToString()将字符串/Object转为值类型时,会提示 需要 IFormatProvider

而 char 、byte 等则不会出现此现象。因此一方面考虑尽量不使用字符串。

只有以下两个重载会被提示需要 IFormatProvider,需要自己实现一个 IFormatProvider 接口。

ToInt32(Object, IFormatProvider)
ToInt32(String, IFormatProvider)
使用指定的区域性特定格式信息,将指定对象的值转换为 32 位带符号整数。


NumberFormatInfo 提供用于对数字值进行格式设置和分析的区域性特定信息。


提供有关特定区域性(对于非托管代码开发,则称为“区域设置”)的信息。 这些信息包括区域性的名称、书写系统、使用的日历、字符串的排序顺序以及对日期和数字的格式化设置。

ToLwer() 等字符串操作时,需要使用到 CultureInfo




将指定的 StringComparison 实例转换为 StringComparer 实例。


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  5. whuanle说道:

    需要注意的是,如果使用了 EFCore 等表达式树翻译,使用全球化可能会导致出错!


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