def is_chinese(uchar):

        """判断一个unicode是否是汉字"""

        if uchar >= u'\u4e00' and uchar<=u'\u9fa5':

                return True

        else:

                return False

def is_number(uchar):

        """判断一个unicode是否是数字"""

        if uchar >= u'\u0030' and uchar<=u'\u0039':

                return True

        else:

                return False

def is_alphabet(uchar):

        """判断一个unicode是否是英文字母"""

        if (uchar >= u'\u0041' and uchar<=u'\u005a') or (uchar >= u'\u0061' and uchar<=u'\u007a'):

                return True

        else:

                return False

def is_other(uchar):

        """判断是否非汉字，数字和英文字符"""

        if not (is_chinese(uchar) or is_number(uchar) or is_alphabet(uchar)):

                return True

        else:

                return False

def B2Q(uchar):

        """半角转全角"""

        inside_code=ord(uchar)

        if inside_code<0x0020 or inside_code>0x7e:      #不是半角字符就返回原来的字符

                return uchar

        if inside_code==0x0020: #除了空格其他的全角半角的公式为:半角=全角-0xfee0

                inside_code=0x3000

        else:

                inside_code+=0xfee0

        return unichr(inside_code)

def Q2B(uchar):

        """全角转半角"""

        inside_code=ord(uchar)

        if inside_code==0x3000:

                inside_code=0x0020

        else:

                inside_code-=0xfee0

        if inside_code<0x0020 or inside_code>0x7e:      #转完之后不是半角字符返回原来的字符

                return uchar

        return unichr(inside_code)

def stringQ2B(ustring):

        """把字符串全角转半角"""

        return "".join([Q2B(uchar) for uchar in ustring])

def uniform(ustring):

        """格式化字符串，完成全角转半角，大写转小写的工作"""

        return stringQ2B(ustring).lower()

def string2List(ustring):

        """将ustring按照中文，字母，数字分开"""

        retList=[]

        utmp=[]

        for uchar in ustring:

                if is_other(uchar):

                        if len(utmp)==0:

                                continue

                        else:

                                retList.append("".join(utmp))

                                utmp=[]

                else:

                        utmp.append(uchar)

        if len(utmp)!=0:

                retList.append("".join(utmp))

        return retList