如何使用geopandas和python合并/合并多个压缩的shapefile？

import geopandas as gpd
import zipfile

with zipfile.ZipFile('shapefile.zip', 'r') as zip_ref:
    zip_ref.extractall('shapefile_folder')

# 读取第一个shapefile文件
gdf = gpd.read_file('shapefile_folder/shapefile1.shp')

# 循环读取并合并其他shapefile文件
for i in range(2, num_files+1):
    filename = 'shapefile_folder/shapefile{}.shp'.format(i)
    temp_gdf = gpd.read_file(filename)
    gdf = gdf.append(temp_gdf)

# 保存合并后的shapefile文件
gdf.to_file('merged_shapefile.shp')