In addition to allowing you to convert date and time formats, JSF provides a special converter for dealing with Numbers such as percentages or currency.
除了可以转换日期和时间格式外，JSF还提供了处理像百分数或者货币数据这类值的特殊转换器。
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Citizens were instructed that they had one week to convert a limited amount of their old currency to the new currency at a rate of 100:1 (that is, one new won would be worth 100 old won).