XML文件的读取----cElementTree

XML文件如下：

<?xml version="1.0" encoding="UTF-8"?>
<tokenxml>
  <tokenspec>
    <spec id="TOTP01">
      <otplen>6</otplen>
      <intervaltime>60</intervaltime>
      <updateresplen>0</updateresplen>
      <puk1len>0</puk1len>
    </spec>
  </tokenspec>
  <tokenlist>
    <token sn="rere0000000000" specid="TOTP01">
      <seed>DDC31A7804A2DBD200BD12C9E752A5E5556FF4C28760DA8A92D368B4B07D7E5B</seed>
      <iv>8CAC8153F5AF7BCE0F9BAF6E5BC7D69C</iv>
      <mac>A60D6FF6E2720832DF5175D097A03362</mac>
    </token>
    <token sn="rere0000000001" specid="TOTP01">
      <seed>0D6DED7C98F5963B6680BF48F077267307D2FC3D62475A9C0AAB2AC2F600751F</seed>
      <iv>D21A12C40112DFEB2C956636A394436D</iv>
      <mac>5683728982A0B89FFDB1F6F7F6D83062</mac>
    </token>
    <token sn="rere0000000002" specid="TOTP01">
      <seed>5C432634DB6EED8AFC06CFE9199C119BF056E7B405D5CF00F357EE52E6779CF1</seed>
      <iv>89ACBD17D31DADD65861999BD4617BFE</iv>
      <mac>3762E2ABEAA26B5A40CC327B61B3736C</mac>
    </token>
    <token sn="rere0000000099" specid="TOTP01">
      <seed>62A367C274AE995157A10D2A45C05928C10DB17B1E7B8538C29E211CE00210BB</seed>
      <iv>23967F8C156728E33A4DED3FD320C478</iv>
      <mac>3CDD4CB5A67822E4ED13B27D205A07F0</mac>
    </token>
  </tokenlist>
</tokenxml>

读取XML代码：

def xmltest(xmlFile):
    import xml.etree.cElementTree as ET#cElementTree是ElementTree的C实现版本，速度更快
    tree = ET.parse(xmlFile)
    root = tree.getroot()
    print root.tag, "---", root.attrib  
    #for elem in tree.iter(tag='token'):#此方法和下面的方法结果一致，范围比较大
    for elem in root.find('tokenlist').findall('token'):#此方法精确到具体的元素
        print elem.tag,':', elem.attrib
        print "sn:%s, specid:%s" % (elem.get('sn'), elem.get('specid'))
        print "    seed:", elem.find("seed").text
        print "    iv:", elem.find("iv").text
        print "    mac:", elem.find("mac").text
        print 
if __name__ == '__main__':
　　xmltest('C:\Users\tester_cp\Desktop\test.xml')

结果：

tokenxml --- {}
token : {'specid': 'TOTP01', 'sn': 'rere0000000000'}
sn:rere0000000000, specid:TOTP01
    seed: DDC31A7804A2DBD200BD12C9E752A5E5556FF4C28760DA8A92D368B4B07D7E5B
    iv: 8CAC8153F5AF7BCE0F9BAF6E5BC7D69C
    mac: A60D6FF6E2720832DF5175D097A03362

token : {'specid': 'TOTP01', 'sn': 'rere0000000001'}
sn:rere0000000001, specid:TOTP01
    seed: 0D6DED7C98F5963B6680BF48F077267307D2FC3D62475A9C0AAB2AC2F600751F
    iv: D21A12C40112DFEB2C956636A394436D
    mac: 5683728982A0B89FFDB1F6F7F6D83062

token : {'specid': 'TOTP01', 'sn': 'rere0000000002'}
sn:rere0000000002, specid:TOTP01
    seed: 5C432634DB6EED8AFC06CFE9199C119BF056E7B405D5CF00F357EE52E6779CF1
    iv: 89ACBD17D31DADD65861999BD4617BFE
    mac: 3762E2ABEAA26B5A40CC327B61B3736C

token : {'specid': 'TOTP01', 'sn': 'rere0000000099'}
sn:rere0000000099, specid:TOTP01
    seed: 62A367C274AE995157A10D2A45C05928C10DB17B1E7B8538C29E211CE00210BB
    iv: 23967F8C156728E33A4DED3FD320C478
    mac: 3CDD4CB5A67822E4ED13B27D205A07F0