规范英文金额大写有3种表达方式:美分，美点，分数美分表达(数字转换到文字)，比如:USD123.12美金写成英语大写字母是SAYUSDOLLARSONEHUNDREDANDTWENTY-THREEANDCENTSTWELVEONLY美点表达:(拼出大写字母)比如:JPY1456.36用英文大写拼出来是SAYJAPANESEYUANFOURHUNDREDANDFIFTY-SIXANDPOINTTHIRTY-FIVEONLY分数表达法:(只接受数字)，eg:USD987.36转换到分数是:SAYUSDOLLARSNINEHUNDREDANDEIGHTY-SEVENANDTHIRTY-SIX36/100ONLY