阿拉伯數字轉中文數字
中文數字的特點:
中文數字對“零”的使用要滿足以下三條規則:
算法設計的一些說明:
節內轉換算法:
function SectionToChinese(section){ var strIns = '', chnStr = ''; var unitPos = 0; var zero = true; while(section > 0){ var v = section % 10; if(v === 0){ if(!zero){ zero = true; chnStr = chnNumChar[v] + chnStr; } }else{ zero = false; strIns = chnNumChar[v]; strIns += chnUnitChar[unitPos]; chnStr = strIns + chnStr; } unitPos++; section = Math.floor(section / 10); } return chnStr; }
轉換算法主函數:
function NumberToChinese(num){ var unitPos = 0; var strIns = '', chnStr = ''; var needZero = false; if(num === 0){ return chnNumChar[0]; } while(num > 0){ var section = num % 10000; if(needZero){ chnStr = chnNumChar[0] + chnStr; } strIns = SectionToChinese(section); strIns += (section !== 0) ? chnUnitSection[unitPos] : chnUnitSection[0]; chnStr = strIns + chnStr; needZero = (section < 1000) && (section > 0); num = Math.floor(num / 10000); unitPos++; } return chnStr; }
中文數字轉阿拉伯數字
設計思想:
中文數字轉換成阿拉伯數字用如下對象實現:
var chnNumChar = { 零:0, 一:1, 二:2, 三:3, 四:4, 五:5, 六:6, 七:7, 八:8, 九:9 };
中文權位轉換成10的位數及節權標志用如下對象實現:
var chnNameValue = { 十:{value:10, secUnit:false}, 百:{value:100, secUnit:false}, 千:{value:1000, secUnit:false}, 萬:{value:10000, secUnit:true}, 億:{value:100000000, secUnit:true} }
轉換算法如下:
function ChineseToNumber(chnStr){ var rtn = 0; var section = 0; var number = 0; var secUnit = false; var str = chnStr.split(''); for(var i = 0; i < str.length; i++){ var num = chnNumChar[str[i]]; if(typeof num !== 'undefined'){ number = num; if(i === str.length - 1){ section += number; } }else{ var unit = chnNameValue[str[i]].value; secUnit = chnNameValue[str[i]].secUnit; if(secUnit){ section = (section + number) * unit; rtn += section; section = 0; }else{ section += (number * unit); } number = 0; } } return rtn + section; }