JavaScript将数字转换成大写中文的方法

function intToChinese ( str ) { str = str+''; var len = str.length-1; var idxs = ['','十','百','千','万','十','百','千','亿','十','百','千','万','十','百','千','亿']; var num = ['零','壹','贰','叁','肆','伍','陆','柒','捌','玖']; return str.replace(/([1-9]|0+)/g,function( $, $1, idx, full) { var pos = 0; if( $1[0] != '0' ){ pos = len-idx; if( idx == 0 && $1[0] == 1 && idxs[len-idx] == '十'){ return idxs[len-idx]; } return num[$1[0]] + idxs[len-idx]; } else { var left = len - idx; var right = len - idx + $1.length; if( Math.floor(right/4) - Math.floor(left/4) > 0 ){ pos = left - left%4; } if( pos ){ return idxs[pos] + num[$1[0]]; } else if( idx + $1.length >= len ){ return ''; }else { return num[$1[0]] } } }); }