列如：
1,,506211.740,3440499.504,415.475
2,,506198.111,3440507.274,417.892
3,,506226.324,3440510.430,418.978
4,,506322.723,3440477.461,419.517
5,,506321.051,3440457.492,418.000
改成
1,,506211.740,3440499.504,416.475
2,,506198.111,3440507.274,418.892
3,,506226.324,3440510.430,419.978
4,,506322.723,3440477.461,420.517
5,,506321.051,3440457.492,419.000

大家来找茬

https://bbs.bccn.net/thread-332242-1-1.html

excel就可以做类似的修改

不过我没看出到底改了神马

open File Line input +
Split() + Val() +
open File Output