一.类型转换
在上一个博文解析了XML文件之后，由于解析之后得到的数据都是Unicode类型的，在一些场合并不适用，因此，需要将获得的数据进行类型转换，主要是将Unicode转换为int,
string和float类型，主要代码如下：
string和float类型，主要代码如下：
'''
Created on 2014-6-20
@author: sheng
'''
def ConvertUnicodeToInt(InputUnicode):
"""Convert the Unicode to integer"""
result = int(InputUnicode)
return result
def ConvertUnicodeToString(InputUnicode):
"""Convert the Unicode to string"""
result = str(InputUnicode)
return result
def ConvertUnicodeToFloat(InputUnicode):
"""Convert the Unicode to InputUnicode"""
result = float(InputUnicode)
return result
二.获取XML文件中保存的数据
结合了XML解析和类型转换之后，就可以从XML文件中通过名字来直接获得标签保存的数据了，例如整数、字符串和浮点数，以及由这些类型组成的整数列表、字符串列表和浮点数列表。
具体代码如下：
'''
Created on 2014-6-20
@author: sheng
'''
import xml.dom.minidom
from ConvertTypeXToTypeY import ConvertUnicodeToInt
from ConvertTypeXToTypeY import ConvertUnicodeToString
from ConvertTypeXToTypeY import ConvertUnicodeToFloat
class XMLParser(object):
'''
classdocs
'''
def __init__(self, FileName):
'''
Constructor
'''
# open the xml file
self.Dom = xml.dom.minidom.parse(FileName)
# get the root element
self.RootElement = self.Dom.documentElement
def GetInt(self, ElementName):
"""
Get the integer by name
"""
# get the element list
ElementList = self.GetData(ElementName)
# get the data
RawResult = ElementList[0].firstChild.data
# convert the data to integer from Unicode
Result = ConvertUnicodeToInt(RawResult)
return Result
def GetIntList(self, ElementName):
"""
Get the integer list by name
"""
# get the element list
ElementList = self.GetData(ElementName)
Result = []
# get the data
for TmpElement in ElementList:
Tmp = TmpElement.firstChild.data
Result.append(ConvertUnicodeToInt(Tmp))
return Result
def GetString(self, ElementName):
"""
Get the string by name
"""
# get the element list
ElementList = self.GetData(ElementName)
# get the data
RawResult = ElementList[0].firstChild.data
# convert the data to integer from Unicode
Result = ConvertUnicodeToString(RawResult)
return Result
def GetStringList(self, ElementName):
"""
Get the float list by name
"""
# get the element list
ElementList = self.GetData(ElementName)
Result = []
# get the data
for TmpElement in ElementList:
Tmp = TmpElement.firstChild.data
Result.append(ConvertUnicodeToString(Tmp))
return Result
def GetFloat(self, ElementName):
"""
Get the float by name
"""
# get the element list
ElementList = self.GetData(ElementName)
# get the data
RawResult = ElementList[0].firstChild.data
# convert the data to integer from Unicode
Result = ConvertUnicodeToFloat(RawResult)
return Result
def GetFloatList(self, ElementName):
"""
Get the string list by name
"""
# get the element list
ElementList = self.GetData(ElementName)
Result = []
# get the data
for TmpElement in ElementList:
Tmp = TmpElement.firstChild.data
Result.append(ConvertUnicodeToFloat(Tmp))
return Result
def GetData(self, ElementName):
"""
Get the data of the element by name
"""
RawResult = self.RootElement.getElementsByTagName(ElementName)
return RawResult
至此，XML文件解析和类型转换结束，可以使用上面的代码来获得xml文件中保存的整数、字符串和浮点数，以及这些类型对应的列表了。
欢迎大家批评指正~
Enjoy it ~
感谢下面的网友的无私分享：
http://www.cnblogs.com/jenry/archive/2010/05/27/1744861.html