10진수 16진수로 [파이썬]

 

이번엔 16진수다.

16진수 체계
0,1,2,3,4,...,9,A,B,C,D,E,F

입력

case 0
case 1 ~ F
case F보다 큰 수

    16 123
          7   11
  낙서 ==============================================================

class FromDecimalToHex:
    def __init__(self):
        self.decimalValue = 0 # type of int
        self.HexDict = {} # type of dictionary
        self.qValue = 0 # 몫
        self.rValue = 0 # 나머지
        self.hexValue = "" # type of string

    # step 1 ==================================================
    def HexList_do_setting(self):
        for i in range(0, 16):
            if (i <= 9):
                self.HexDict[i] = str(i)
            else: # i >= 10
                self.HexDict[i] = chr(i+55)
        print ("hex_dictionary => {}".format(self.HexDict))

    # step 2 ==================================================
    def decimalValue_input(self):
        while True:
            try:
                self.decimalValue = int(input("decimal input :  "))
            except:
                print ("정수만 입력해주세요")
            else:
                if self.decimalValue < 0:
                    print ("Plz positive integer")
                else:
                    print ("perfect")
                    break
    # step 3 ==================================================
    def fromDecimal_ToHex(self):
        if (self.decimalValue == 0 or self.decimalValue == 1):
            self.hexValue += self.HexDict[self.decimalValue]
        else:
            while True:
                self.qValue = self.decimalValue//16
                self.rValue = self.decimalValue%16
                self.hexValue += self.HexDict[self.rValue]
                if self.qValue < 16:
                    self.hexValue += self.HexDict[self.qValue]
                    break
                else:
                    self.decimalValue = self.qValue
        self.hexValue +="x0"
        print (self.hexValue[::-1])

def main():
    my1033 = FromDecimalToHex() # 객체 생성
    my1033.HexList_do_setting()
    my1033.decimalValue_input()
    my1033.fromDecimal_ToHex()
if __name__ == "__main__":
    main()