python把坐标写入文本_使用Python将XY坐标写入CSV文件

我是python编程新手，我有一个相当简单的项目，但有一些困难。我想（a）提取shapefile（多边形）顶点的XY坐标，（2）将所有坐标写入一个csv文件，其中第一列是X坐标，第二列是Y坐标。到目前为止，我编写的代码将顶点坐标写入csv文件，但坐标的每个数字都放在不同的列中。在

以下是我目前为止的代码：import arcpy, os, csv

from arcpy import env

workspace = "J:/Folder/"

arcpy.env.overwriteOutput = True

myPath = workspace

oFile = open(myPath + "xyCoord.csv", "w")

polygon = myPath + "Polygon2.shp"

writer = csv.writer(oFile, delimiter = ',', dialect = 'excel', lineterminator = '\n')

writer.writerow(['X', 'Y'])

for row in arcpy.da.SearchCursor(polygon, ["OID@", "SHAPE@"]):

print ("Feature {0}:".format(row[0]))

partnum = 0 # Prints the current multipont's ID

for part in row[1]:

print ("Part {0}:".format(partnum)) # Prints the part number

for vertex in part:

print ("{0}, {1}".format(vertex.X, vertex.Y))

writer.writerow(str(vertex.X) + str(vertex.Y))

partnum += 1

oFile.close()