后处理这样的文件，怎么改啊

蓝色经典

N0220 G2
; n+ T+ r/ r- Z* R/ V" nN0230 G1 X144.308
N0240 G2
N0250 G1 X143.321
N0260 G2
9 G# E7 Q6 ]. H6 y9 P8 xN0270 G1 X142.334
7 N1 x9 v* ~; l( N8 bN0280 G2
N0290 G1 X141.348
( R$ I$ t0 v2 v4 H* ^N0300 G2
/ E" x' ?  o9 |9 l9 M* N: o4 e- `N0310 G1 X140.361
N0320 G2
N0330 G1 X139.375
6 P5 j2 k* x! T0 L  k7 yN0340 G2
N0350 G1 X138.388
N0360 G2
, w3 G. v/ x# F8 M8 r& W+ IN0370 G1 X137.402
, m& J& i! F1 k: L8 X% ]N0380 G2
5 m! p+ R, d* KN0390 G1 X136.415
N0400 G2
N0410 G1 X135.429
N0420 G2
: b- r1 f1 _) K5 xN0430 G1 X134.442
( x7 x; `5 T3 ^) [5 PN0440 G2
N0450 G1 X133.456
6 {, i) B. i3 W4 \/ |" F/ zN0460 G2
3 @, a7 y  A' Z+ A3 {N0470 G1 X132.469
  f1 {" g, v: f* VN0480 G2
/ w! v, Y7 m* n' V8 _; LN0490 G1 X131.482
% o1 K5 j/ y" _4 @N0500 G2
N0510 G1 X130.496
; n5 n# j8 y5 RN0520 G2
; w1 Y5 h! O* d& RN0530 G1 X129.509
8 s2 L" j, R2 a+ RN0540 G2
% x( v- z3 L* Z$ w0 z2 ~2 aN0550 G1 X128.523

wjljp2046

/ m3 o6 ]6 @7 ^" K) Y; i3 ^4 o走完直线，走整个圆弧？？？
, @$ B  \9 |% s- q9 W) P% x不懂？ 为什么不用子程序呢？？？