一组python用于验证数据的函数

#! /usr/bin/env python
coding=utf-8
import types
import re
"""
验证所有表单提交的数据
"""
判断是否为整数 15
def IsNumber(varObj):

return type(varObj) is types.IntType


判断是否为字符串 string
def IsString(varObj):

return type(varObj) is types.StringType


判断是否为浮点数 1.324
def IsFloat(varObj):
    return type(varObj) is types.FloatType
判断是否为字典 {'a1':'1','a2':'2'}
def IsDict(varObj):

return type(varObj) is types.DictType


判断是否为tuple [1,2,3]
def IsTuple(varObj):

return type(varObj) is types.TupleType


判断是否为List [1,3,4]
def IsList(varObj):

return type(varObj) is types.ListType


判断是否为布尔值 True
def IsBoolean(varObj):

return type(varObj) is types.BooleanType


判断是否为货币型 1.32
def IsCurrency(varObj):

#数字是否为整数或浮点数
if IsFloat(varObj) and IsNumber(varObj):
    #数字不能为负数
    if varObj >0:
        return isNumber(currencyObj)
        return False
return True


判断某个变量是否为空 x
def IsEmpty(varObj):

if len(varObj) == 0:
    return True
return False


判断变量是否为None None
def IsNone(varObj):

return type(varObj) is types.NoneType# == "None" or varObj == "none":


判断是否为日期格式,并且是否符合日历规则 2010-01-31
def IsDate(varObj):

if len(varObj) == 10:
    rule = '(([0-9]{3}[1-9]|[0-9]{2}[1-9][0-9]{1}|[0-9]{1}[1-9][0-9]{2}|[1-9][0-9]{3})-(((0[13578]|1[02])-(0[1-9]|[12][0-9]|3[01]))|((0[469]|11)-(0[1-9]|[12][0-9]|30))|(02-(0[1-9]|[1][0-9]|2[0-8]))))|((([0-9]{2})(0[48]|[2468][048]|[13579][26])|((0[48]|[2468][048]|[3579][26])00))-02-29)$/'
    match = re.match( rule , varObj )
    if match:
        return True
    return False
return False


判断是否为邮件地址
def IsEmail(varObj):

rule = '[\w-]+(\.[\w-]+)*@[\w-]+(\.[\w-]+)+$'
match = re.match( rule , varObj )

if match:
    return True
return False


判断是否为中文字符串
def IsChineseCharString(varObj):

for x in varObj:
    if (x >= u"\u4e00" and x<=u"\u9fa5") or (x >= u'\u0041' and x<=u'\u005a') or (x >= u'\u0061' and x<=u'\u007a'):
       continue
    else:
       return False
return True



判断是否为中文字符
def IsChineseChar(varObj):

if varObj[0] > chr(127):
   return True
return False


判断帐号是否合法 字母开头，允许4-16字节，允许字母数字下划线
def IsLegalAccounts(varObj):

rule = '[a-zA-Z][a-zA-Z0-9_]{3,15}$'
match = re.match( rule , varObj )

if match:
    return True
return False


匹配IP地址
def IsIpAddr(varObj):

rule = '\d+\.\d+\.\d+\.\d+'
match = re.match( rule , varObj )

if match:
    return True
return False




if name=='main':
    print 'IsDate:',IsDate('2010-01-31')
    print 'IsNone:',IsNone(None)
    print 'IsEmpty:',IsEmpty('1')
    print 'IsCurrency:',IsCurrency(1.32)
    print 'IsList:',IsList([1,3,4])
    print 'IsTuple:',IsTuple([1,3,4])
    print 'IsDict:',IsDict({'a1':'1','a2':'2'})
    print 'IsFloat:',IsFloat(1.2)
    print 'IsString:',IsString('string')
    print 'IsNumber:',IsNumber(15)
    print 'IsEmail:',IsEmail('sgicer@163.com')
    print 'IsChineseChar:',IsChineseChar(u'啊')
    print 'IsChineseCharString:',IsChineseCharString(u'啊倒萨')
    print 'IsLegalAccounts:',IsLegalAccounts('alan_z')
    print 'IsIpAddr:',IsIpAddr('127.1110.0.1')
    pass</pre>