import pythoncom import win32com.client def selectObject(): polylineCoord = [] wincad = win32com.client.Dispatch("AutoCAD.Application") doc = wincad.ActiveDocument msp = doc.ModelSpace try: doc.SelectionSets.Item("SS1").Delete() except: print("Delete selection failed") slt = doc.SelectionSets.Add("SS1") doc.Utility.Prompt("请选择多段线，右键结束\n")#cad里显示的提示 slt.SelectOnScreen() if slt.Count == 0: doc.Utility.Prompt("未选择对象！\n") else: entity = slt[0] name = entity.EntityName for i in range(len(entity.Coordinates)): polylineCoord.append(round(entity.Coordinates[i])) # 坐标分组 polylineCoord = [polylineCoord[x:x+2] for x in range(0,len(polylineCoord),2)] print(polylineCoord) if name == 'main': selectObject()根据上述函数用python改成一个在cad点击后获得点坐标的函数，并打印出来

下面是用Python实现在CAD中选择多段线并获取坐标的函数：

import pythoncom
import win32com.client

def select_polyline():
    polyline_coord = []
    acad = win32com.client.Dispatch("AutoCAD.Application")
    doc = acad.ActiveDocument
    msp = doc.ModelSpace
    try:
        doc.SelectionSets.Item("SS1").Delete()
    except:
        pass
    slt = doc.SelectionSets.Add("SS1")
    doc.Utility.Prompt("请选择多段线，右键结束\n")
    slt.SelectOnScreen()
    if slt.Count == 0:
        doc.Utility.Prompt("未选择对象！\n")
    else:
        entity = slt[0]
        name = entity.EntityName
        for i in range(len(entity.Coordinates)):
            polyline_coord.append(round(entity.Coordinates[i], 2))
        polyline_coord = [polyline_coord[x:x+2] for x in range(0, len(polyline_coord), 2)]
        print(polyline_coord)

if __name__ == '__main__':
    select_polyline()

在CAD中运行这个函数后，该函数会提示用户选择一个多段线，并在选择结束后获取该多段线的坐标并打印出来。