GDAL 矢量属性数据修改方式(python)

# 添加字段
 defn = layer.GetLayerDefn()
 fieldIndex=defn.GetFieldIndex('SSSS')
 if fieldIndex<0:
  # 添加字段
  fieldDefn = ogr.FieldDefn('SSSS', ogr.OFTInteger)
  fieldDefn.SetPrecision(9)
  layer0.CreateField(fieldDefn,1);
 fieldIndex2 = defn.GetFieldIndex('SSSS')
 if fieldIndex2>0:
  print("字段创建成功：",fieldIndex)

 feature = layer.GetNextFeature()
 indexA = defn.GetFieldIndex('code')
 indexB = defn.GetFieldIndex('SSSS')
 oField = defn.GetFieldDefn(indexB)
 fieldName = oField.GetNameRef()
 while feature is not None:
  valueA= feature.GetFieldAsInteger(indexA)
  if valueA is None:
   feature.SetFieldNull(indexB)
   continue
  feature.SetField2(fieldName, valueA)
  layer0.SetFeature(feature)  
  feature = layer0.GetNextFeature()
 #feature.Destroy()
 ds.Destroy()

#-*- coding: utf-8 -*-
 
import os
import shutil
import csv
 
#批量修改shp中dbf文件中的字段名
#LANE_WIDTH改为LANEWIDTHL
#LANE_WID_1改为LANEWIDTHR
#ORIGIN_LIN改为ORG_LINKID
 
roadDir = r"D:\20Q1\00DATA\ModifyTitle\ROAD_TEST\\"
modifyRoadDir = r"D:\20Q1\00DATA\ModifyTitle\ModifiedLink\\"
csvDir = r"D:\20Q1\00DATA\ModifyTitle\ROAD_CSV\\"
fileList = os.listdir(roadDir)
 
num = 0
for file in fileList:
 #新建修改后的城市文件夹
 city = file.split("_")[0]
 
 os.mkdir(csvDir + city) 
 os.mkdir(modifyRoadDir + city)
 shutil.copy(roadDir + file + "/RD_LINK.dbf", csvDir + city + "/RD_LINK.csv")
 
 print("正在生成{}新dbf文件......".format(city))
 dbfData = []
 #读取dbf数据为csv文件,读存内容部分
 csvFile = open(csvDir + city + "/RD_LINK.csv",encoding='gbk',errors='ignore')
 csvReader = csv.reader(csvFile)
 for row in csvReader:
  titleLine = []
  if csvReader.line_num == 1:
   titleLine.append(row)
   continue #跳过第1行——列名
  dbfData.append(row)
 
 #生成正确的字段名行
 newTitleLine = [] 
 modifyDic = {"LANE_WIDTH":"LANEWIDTHL","LANE_WID_1":"LANEWIDTHR","ORIGIN_LIN":"ORG_LINKID"}  
 for fieldName in titleLine:
  if fieldName in modifyDic:
   newTitleLine.append(modifyDic[fieldName])
  else:
   newTitleLine.append(fieldName)
   
 #写入新dbf文件
 newDBF = open(modifyRoadDir + city + "/RD_LINK.dbf",'w')
 csvWriter = csv.writer(newDBF)
 csvWriter.writerow(newTitleLine)
 for row in dbfData:
  csvWriter.writerow(row)
 newDBF.close()
 print("{}新dbf文件已生成！".format(city))
  
print("{}城市全部完成".format(num)) 

#-*- coding: utf-8 -*-
 
import os
import arcpy
 
#批量修改shp中dbf文件中的字段名
#LANE_WIDTH改为LANEWIDTHL
#LANE_WID_1改为LANEWIDTHR
#ORIGIN_LIN改为ORG_LINKID
 
roadDir = r"D:\20Q1\00DATA\ModifyTitle\ROAD_TEST\\"
fileList = os.listdir(roadDir)
 
num = 0
for file in fileList:
 #截取城市名
 city = file.split("_")[0]
 print("正在修改{}的shp字段......".format(city))
 
 #修改前后字段名对照字典
 modifyDic = {"LANE_WIDTH":"LANEWIDTHL","LANE_WID_1":"LANEWIDTHR","ORIGIN_LIN":"ORG_LINKID"} 
 
 #读取shp数据
 dbfFile = roadDir + file + "/RD_LINK.shp"
 fieldList = arcpy.ListFields(dbfFile)
 for field in fieldList: #遍历字段名
  if field.name.upper() in modifyDic: #找到待修改字段名
   arcpy.AlterField_management(dbfFile, field = field.name, new_field_name = modifyDic[field.name])
   
 
 print("{}字段修改成功！".format(city))
  
print("{}城市全部完成".format(num)) 

#-*- coding: utf-8 -*-
 
import os
import arcpy
 
#批量修改shp属性表中的字段名
#LANE_WIDTH改为LANEWIDTHL
#LANE_WID_1改为LANEWIDTHR
#ORIGIN_LIN改为ORG_LINKID
 
roadDir = r"D:\20Q1\00DATA\ModifyTitle\ROAD_TEST\\"
fileList = os.listdir(roadDir)
 
num = 0
for file in fileList:
 
 city = file.split("_")[0] #截取城市名 
 print("正在添加和计算{}的shp正确字段......".format(city))
 
 #修改前后字段名对照属性字典
 modifyDic = {"LANE_WIDTH":["LANEWIDTHL","1"],#错误字段名：[正确字段名，长度]
     "LANE_WID_1":["LANEWIDTHR","1"],
     "ORIGIN_LIN":["ORG_LINKID","10"]}
 
 #读取shp文件
 shpFile = roadDir + file + "/RD_LINK.shp"
 
 for wrongfieldName in modifyDic:
  correctfieldName = modifyDic[wrongfieldName][0]
  field_length = modifyDic[wrongfieldName][1]
 
  # Process: 添加字段
  arcpy.AddField_management(shpFile, correctfieldName, "TEXT", "", "", field_length)
  # Process: 计算字段字段
  arcpy.CalculateField_management(shpFile, correctfieldName, "["+wrongfieldName+"]", "VB", "")
 
 
## # Process: 添加字段——LANEWIDTHL
## arcpy.AddField_management(shpFile, "LANEWIDTHL", "TEXT", "", "", "1")
## # Process: 计算字段字段——LANEWIDTHL
## arcpy.CalculateField_management(shpFile, "LANEWIDTHL", "["++]", "VB", "")
##
## # Process: 添加字段——LANEWIDTHR
## arcpy.AddField_management(shpFile, "LANEWIDTHR", "TEXT", "", "", "1")
## # Process: 计算字段字段——LANEWIDTHR
## arcpy.CalculateField_management(shpFile, "LANEWIDTHR", "[LANE_WID_1]", "VB", "")
##
## # Process: 添加字段——ORG_LINKID
## arcpy.AddField_management(shpFile, "ORG_LINKID", "TEXT", "", "", "10")
## # Process: 计算字段字段——ORG_LINKID
## arcpy.CalculateField_management(shpFile, "ORG_LINKID", "[ORIGIN_LIN]", "VB", "")
##
## # Process: 删除字段
## #arcpy.DeleteField_management(in_table, "LANE_WIDTH")
 
 print("{}修改完成！请确认！".format(city))
 
 num += 1 
print("{}城市全部完成！".format(num))