for i in range(2):
    table={0:'0',1:"1",2:"2",3:"3",4:"4",5:"5",6:"6",7:"7",8:"8",9:"9",10:"A",11:"B",12:"C",13:"D",14:"E",15:"F"}
    def DtoH(num):
        if num<=0:
            return ''
        y=num%16
        return DtoH(num//16)+table[y]
    num=int(input('请输入一个十进制的数字：'))
    print(f"十六进制：{DtoH(num)}")
print('代码运行成功\n退出')