The <fmt:formatNumber> action determines from the locale, for example, whether to use a period or a comma for delimiting the integer and decimal portions of a number. Here is its syntax

<fmt:formatNumber> 操作由语言环境确定，例如，使用句点还是使用逗号来定界数字的整数和小数部分。

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The decimal point may be represented, according to various conventions, by a comma, by a period, or by a point at the mid-height of the digits.

根据各种习惯，十进制小数点可用逗号、号或在数字符的半高位置上加上一个点来表示。

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Floats must follow the decimal point format (no matter which region of the world), it means that the final product of your string must have a. Instead of the comma.

浮动必须遵循小数点格式(无论哪一个地区的世界)，这意味着最终产品必须有一个你的字符串。

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