Python在字符前后补字符

def addForLR(voldStr, vaddStr, vlength, vleft=True):

    “””

数字前补0可以补”0″也可以补””

# print(tools.addForLR(1123,’0′,6));

# print(tools.addForLR(1123,’0′,6,False));

@param voldStr 旧字符串

@param vaddStr 添加字符串

@param vlength 字符长度

@param vleft

<p>

true:左补字符

</p>

<p>

false:右补字符

</p>

@author zhangjun

@return 重组后的数据

    “””

    if (voldStr == None or vaddStr == None):

        return voldStr;

    voldStr = str(voldStr);

    vaddStr = str(vaddStr);

    vlen = len(voldStr);

    if (vlen < vlength) :

        while (vlen < vlength) :

            sb = ”;

            if (vleft) :

                sb = vaddStr + voldStr;

            else :

                sb = voldStr + vaddStr;

            voldStr = sb;

            vlen = len(voldStr);

    return voldStr;