我的数据框"A"看起来像这样:
type latw lngs late lngn
0 1000 45.457966 9.174864 45.458030 9.174907
1 1000 45.457966 9.174864 45.458030 9.174907
2 1000 45.458030 9.174864 45.458094 9.174907
3 1000 45.458094 9.174864 45.458157 9.174907
4 1000 45.458157 9.174864 45.458221 9.174907
5 1000 45.458221 9.174864 45.458285 9.174907
6 1000 45.458285 9.174864 45.458349 9.174907
7 1000 45.458349 9.174864 45.458413 9.174907
8 1000 45.458413 9.174864 45.458477 9.174907
9 1000 45.458477 9.174864 45.458540 9.174907
10 1000 45.458540 9.174864 45.458604 9.174907
11 1000 45.458604 9.174864 45.458668 9.174907
12 1000 …