Python 2.7 二进制到十六进制的转换

如上图所示，我知道如何从十六进制转换为二进制，但我不知道如何用二进制转换为十六进制的方法来实现？请注意，您不能使用任何Python函数，因为这只是一个简单的解决方法，所以我只想让您知道这一点！我的想法与代码中的完全相反，例如numbin1==0001和result=1。请帮助我，我将不胜感激！这是在Python2.7中

试试这个功能

#Conversion from Hex to Bin
def gethex(hexadecimal1):
       numbintotal=' '
       for i in range(len(hexadecimal1)):              
              numbin1=hexadecimal1[i]
              if(numbin1=='0'):
                  result='0000'
              elif(numbin1=='1'):
                  result='0001'
              elif(numbin1=='2'):
                   result='0010'
              elif(numbin1=='3'):
                   result='0011'
              elif(numbin1=='4'):
                   result='0100'
              elif(numbin1=='5'):
                  result='0101'
              elif(numbin1=='6'):
                   result='0110'
              elif(numbin1=='7'):
                   result='0111'
              elif(numbin1=='8'):
                   result='1000'
              elif(numbin1=='9'):
                   result='1001'
              elif(numbin1=='a'):
                   result='1010'
              elif(numbin1=='b'):
                   result='1011'
              elif(numbin1=='c'):
                   result='1100'
              elif(numbin1=='d'):
                   result='1101'
              elif(numbin1=='e'):
                   result='1110'
              elif(numbin1=='f'):
                   result='1111'
              elif(numbin1=='q'):
#Get hexadecimal
while(numhex!='q'):
    numhex=raw_input('Enter a hexadecimal number (q to quit): ')
    numbin= gethex(numhex)
    if(numhex=='q'):
        print(numbin)
    else:
        print('The binary number is:'+ numbin)


                   result='Program shutting down...'
              else:
                   result='Please type in a hexadecimal number'
              numbintotal= numbintotal + result
       return numbintotal


#Create a varaible
numhex='0'
results='0'
numbin1='0'

def binhexZ（无效）：
wmap={“0000”：“0”，
"0001": "1",
"0010": "2",
"0011": "3",
"0100": "4",
"0101": "5",
"0110": "6",
"0111": "7",
"1000": "8",
"1001": "9",
“1010”：“A”，
“1011”：“B”，
“1100”：“C”，
“1101”：“D”，
“1110”：“E”，
“1111”：“F”
}
i=0
output=“”
而（len（invalue）%4！=0）：
无效=“0”+无效
而（i

尝试此功能

#Conversion from Hex to Bin
def gethex(hexadecimal1):
       numbintotal=' '
       for i in range(len(hexadecimal1)):              
              numbin1=hexadecimal1[i]
              if(numbin1=='0'):
                  result='0000'
              elif(numbin1=='1'):
                  result='0001'
              elif(numbin1=='2'):
                   result='0010'
              elif(numbin1=='3'):
                   result='0011'
              elif(numbin1=='4'):
                   result='0100'
              elif(numbin1=='5'):
                  result='0101'
              elif(numbin1=='6'):
                   result='0110'
              elif(numbin1=='7'):
                   result='0111'
              elif(numbin1=='8'):
                   result='1000'
              elif(numbin1=='9'):
                   result='1001'
              elif(numbin1=='a'):
                   result='1010'
              elif(numbin1=='b'):
                   result='1011'
              elif(numbin1=='c'):
                   result='1100'
              elif(numbin1=='d'):
                   result='1101'
              elif(numbin1=='e'):
                   result='1110'
              elif(numbin1=='f'):
                   result='1111'
              elif(numbin1=='q'):
#Get hexadecimal
while(numhex!='q'):
    numhex=raw_input('Enter a hexadecimal number (q to quit): ')
    numbin= gethex(numhex)
    if(numhex=='q'):
        print(numbin)
    else:
        print('The binary number is:'+ numbin)


                   result='Program shutting down...'
              else:
                   result='Please type in a hexadecimal number'
              numbintotal= numbintotal + result
       return numbintotal


#Create a varaible
numhex='0'
results='0'
numbin1='0'

def binhexZ（无效）：
wmap={“0000”：“0”，
"0001": "1",
"0010": "2",
"0011": "3",
"0100": "4",
"0101": "5",
"0110": "6",
"0111": "7",
"1000": "8",
"1001": "9",
“1010”：“A”，
“1011”：“B”，
“1100”：“C”，
“1101”：“D”，
“1110”：“E”，
“1111”：“F”
}
i=0
output=“”
而（len（invalue）%4！=0）：
无效=“0”+无效
而（i