本文實例講述了Python3.5編程實現修改IIS WEB.CONFIG的方法。分享給大家供大家參考，具體如下：

#!/usr/bin/env python3.5# -*- coding:utf8 -*-from xml.etree.ElementTree import ElementTree,Elementdef read_xml(in_path):  """  讀取并解析XML文件  :param in_path: XML路徑  :return:  """  tree = ElementTree()  tree.parse(in_path)  return treedef write_xml(tree,out_path):  """  將XML文件寫出  :param tree:  :param out_path:寫出路徑  :return:  """  tree.write(out_path,encoding="utf-8",xml_declaration=True)def if_match(node,kv_map):  """  判斷某個節點是否包含所有傳入參數屬性  :param node: 節點  :param kv_map: 屬性及屬性值組成的MAP  :return:  """  for key in kv_map:    if node.get(key) != kv_map.get(key):      return False    return Truedef find_nodes(tree,path):  """  查找某個路徑匹配的所有節點  :param tree:XML樹  :param path:節點路徑  :return:  """  return tree.findall(path)def get_node_by_keyvalue(nodelist,kv_map):  """  根據屬性及屬性值定位符合的節點，返回節點  :param nodelist: 節點列表  :param kv_map: 匹配屬性及屬性值MAP  :return:  """  result_nodes =[]  for node in nodelist:    if if_match(node,kv_map):      result_nodes.append(node)  return result_nodesdef change_node_properties(nodelist,kv_map,is_delete =False):  """  修改、增加、刪除 節點的屬性及屬性值  :param nodelist: 節點列表  :param kv_map: 屬性及屬性值MAP  :param is_delete:  :return:  """  for node in nodelist:    for key in kv_map:      if is_delete:        if key in node.attrib:          del node.attrib[key]      else:        node.set(key,kv_map.get(key))def change_node_text(nodelist,text,is_add=False,is_delete=False):  """  改變、增加、刪除一個節點的文本  :param nodelist: 節點列表  :param text: 更新后的文本  :param is_add:  :param is_delete:  :return:  """  for node in nodelist:    if is_add:      node.text += text    elif is_delete:      node.text = ""    else:      node.text = textdef create_node(tag,property_map,content):  """  新造一個節點  :param tag:節點標簽  :param property_map:屬性及屬性值MAP  :param content: 節點閉合標簽里的文件內容  :return:新節點  """  element =Element(tag,property_map)  element.text =content  return elementdef add_child_node(nodelist,element):  """  給一個節點添加子節點  :param nodelist: 節點列表  :param element: 子節點  :return:  """  for node in nodelist:    node.append(element)def del_node_by_tagkeyvalue(nodelist,tag,kv_map):  """  同過屬性及屬性值定位一個節點，并刪除之  :param nodelist: 父節點列表  :param tag: 子節點標簽  :param kv_map: 屬性及屬性值列表  :return:  """  for parent_node in nodelist:    childree = parent_node.getchildren()    for child in childree:      if child.tag == tag and if_match(child,kv_map):        parent_node.remove(child)def config_file_rw(file):  """  對XML配置文件進行修復以滿足適應IIS  :param file: 目標文件  :return:  """  import re  x =re.compile("<ns0:")  y = re.compile("</ns0:")  z = re.compile("xmlns:ns0")  with open(file,"r",encoding="utf-8") as f:    txt = f.readlines()    for i, line in enumerate(txt):      if x.search(line):        txt[i] = x.sub("<", line)      elif y.search(line):        txt[i] = y.sub("</", line)      elif z.search(line):        txt[i] = "<configuration>/n"  with open(file,"w",encoding="utf-8") as fw:    fw.writelines(txt)    fw.close()    print("配置文件%s，修改成功！"%file)if __name__ == "__main__":  #1. 讀取xml文件  tree = read_xml("web.config")  # 找到父節點  print()  nodes = find_nodes(tree, "connectionStrings/")  # 通過屬性準確定位子節點  result_nodes =(get_node_by_keyvalue(nodes,{"name":"strConnection_HuaChenShiYou"}))  # 修改節點屬性  change_node_properties(result_nodes,{"connectionString":"UwreW/Obe4fGk2CFW4uE6iZWaPAVn0nePXIrtNRApxEGLv6SHetFg6b%2BMLFhg9myAr2EI2b3FgHtKHOKVcjz5DPoV8%2BMAvpzqlEZP2JZqrVEofP3AulFUZbTLfmndYFRqIytlxSCeHr2A79EWHH9/xg0eSgsdvWd"})  # #2. 屬性修改  # #A. 找到父節點  # nodes = find_nodes(tree, "processers/processer")  # #B. 通過屬性準確定位子節點  # result_nodes = get_node_by_keyvalue(nodes, {"name":"BProcesser"})  # #C. 修改節點屬性  # change_node_properties(result_nodes, {"age": "1"})  # #D. 刪除節點屬性  # change_node_properties(result_nodes, {"value":""}, True)  #  # #3. 節點修改  # #A.新建節點  # a = create_node("person", {"age":"15","money":"200000"}, "this is the firest content")  # #B.插入到父節點之下  # add_child_node(result_nodes, a)  #  # #4. 刪除節點  #  #定位父節點  # del_parent_nodes = find_nodes(tree, "processers/services/service")  #  #準確定位子節點并刪除之  # target_del_node = del_node_by_tagkeyvalue(del_parent_nodes, "chain", {"sequency" : "chain1"})  #  # #5. 修改節點文本  #  #定位節點  # text_nodes = get_node_by_keyvalue(find_nodes(tree, "processers/services/service/chain"), {"sequency":"chain3"})  # change_node_text(text_nodes, "new text")  #  # #6. 輸出到結果文件  write_xml(tree, "new.config")  config_file_rw("new.config")