JavaScript 10進数と62の間の相互変換

関数String10to62（number）{var chars = '0123456789ABCDEFGHIGKLMNOPQRSTUVWXYZABCDEFGHIGKLMNOPQRSTUVWXYZ'.SPLIT（' '）、radix = charss.length、qutient = +and = []; {mod = qutient％radix; qutient =（qutient -mod） / radix; arr.unshift（chars [mod]）; } while（qutient）; return arr.join（ ''）;} function string62to10（number_code）{var chars = '0123456789ABCDEFGHIGKLMNOPQRSTUVWXYZABCDEFGHIGKLMNOPQRSTUVWXYZ'、radix = chars 0、origin_number = 0; while（i <len）{origin_number+= math.pow（radix、i ++） * chars.indexof（number_code.charat（len -i）|| 0）; } return rigin_number;}