Python unicode码转utf8，pythonutf8,[Python]代码de

Python unicode码转utf8，pythonutf8,[Python]代码de

[Python]代码

def h2b(x):    """十六进制转二进制"""    result = []    if x==0:        return ['0']    while x != 1:        result.append(str(x%2))        x /= 2    result.append('1')    result.reverse()    if len(result) % 4 != 0:        for i in range(0,(4 - len(result) % 4)):            result.insert(0,'0')    return "".join(result)def c2u(x):    """unicode 转 utf8"""    result = ''    if 0x0 <= x and x <= 0x7F:        result =  h2b(x)    elif 0x80 <= x and x <= 0x7FF:        if len(h2b(x)) == 8:            tmp = '000' + h2b(x)        else:            tmp = h2b(x)[1:]        result = '110'+ tmp[0:5] + '10' + tmp[5:]    elif 0x800 <= x and x <= 0xFFFF:        if len(h2b(x)) == 12:            tmp = '0000' + h2b(x)        else:            tmp = h2b(x)        result = '1110'+ tmp[0:4] + '10' + tmp[4:10] + '10' + tmp[10:]    return b2h(result)def b2h(x):    """二进制转十六进制"""    hex = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9' , 'A' , 'B' , 'C' , 'D' , 'E' , 'F']    result = []    def getValue(bin):        value = 0        for i in range(4):            value += int(bin[i]) * 2**(3-i)        return value    for i in range(len(x)/4):        result.append(hex[getValue(x[i*4:(i+1)*4])])    return result