Bagaimana untuk menggunakan pyshp untuk membaca dan menulis fail shp dalam python

pip install pyshp

import shapefile

    几何类型
    NULL = 0
    POINT = 1
    POLYLINE = 3
    POLYGON = 5
    MULTIPOINT = 8
    POINTZ = 11
    POLYLINEZ = 13
    POLYGONZ = 15
    MULTIPOINTZ = 18
    POINTM = 21
    POLYLINEM = 23
    POLYGONM = 25
    MULTIPOINTM = 28
    MULTIPATCH = 31
   print(shape.shapeType)

# 同时读取geometry and records
sf.shapeRecords()
获取所有
red=sf.shapeRecords()[0]  #获取第一条数据
print(red.record)  #获取record
print(red.shape)   #获取shape

print(sf.fields)
[('DeletionFlag', 'C', 1, 0), ['OBJECTID', 'N', 9, 0], ['BSM', 'C', 12, 0], ['PXZQDM', 'C', 2, 0], ['PXZQMC', 'C', 50, 0]]

import shapefile
outshp = 'a.shp'
 
 landlist=[ '84.60212,45.03658,84.60794,45.03938,84.61473,45.04151,84.62442,45.04375,84.62727,45.03632,84.63939,45.0367,84.64906,45.03277,84.63886,45.02233',
    '84.58063,45.05523,84.57974,45.04717,84.59864,45.04792,84.60078,45.05523,84.58758,45.05473,84.58223,45.05523'
]
def tramform(lat_lng):
    str =lat_lng
    str = str.split(',')
    arr = []
    for i in range(len(str) - 1):
        # 第一列，第二列作为经纬度（x，y）创建点
        if i % 2 == 0:
            arr.append([float(str[i]), float(str[i + 1])])
    return arr
fileWrite = shapefile.Writer("create/1.shp",encoding='utf-8')  # 新建数据存放位置

# shp文件属性字段 Fid,Shape会自动生成。
fileWrite.field('landid')
fileWrite.field('landName')

for i in range(len(landlist)):
    # 第一步：塞入形状
    ## 这个形状指的就是那些点的集合
    ## 由于源码中要求的输入是列表，因此就算只塞入一个，也要套一个列表
    arr=[]
    arr=tramform(landlist[i])
    #[[84.60212, 45.03658], [84.60794, 45.03938], [84.61473, 45.04151], [84.62442, 45.04375], [84.62727, 45.03632], [84.63939, 45.0367], [84.64906, 45.03277], [84.63886, 45.02233]]
    #poly 写入面，点线面使用不同函数
    fileWrite.poly([arr])

    # 第二步：塞入属性值
    fileWrite.record(str(i), '地块')
# 保存结束
fileWrite.close()