curl --location -g --request POST 'https://editor.olmap.cn/spacialUtil/lineLength?ckey={{ckey}}' \
--data-urlencode 'line=116.306210,39.976121|天安门' \
--data-urlencode 'city=' \
--data-urlencode 'toCoordType='{"success":true,"msg":"操作成功","data":10765.874758530479}