获取部件中所有的表达式，并对表达式进行更改，更新模型

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获取部件中所有的表达式，并对表达式进行更改，更新模型

结果：

Before change the value :
p0=20
$ R! l9 R9 ~! y% E5 Q5 P* X0 S8 Kp1=h
w=100
- n& v% E) d* Hh=20
l=200
4 k7 M/ }- U3 H' ^' @% xStart to change the expressions :
p0=20
; V" J" K" `( l0 c: k2 R# [p1=h
w=100
2 U$ b& V1 D. jh=20
( b# d1 v+ |7 l" w, ^: y2 Cl=200
& f; g9 r+ e/ L: P4 V2 O* ^

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1. <p>
   
2. static void do_UGopen_api(void)
   
3. {
   7 Y0 B- B4 B' Y2 K. J4 [
4. // create block 1
   
5. double coner[3] = {0,0,0};
     o8 g3 A* |  ^
6. char *edges[3] = {"l=100","w=100","h=20"};
   4 K2 `: o3 b* i% ?4 g2 v
7. tag_t blk_tag;
   
8. UF_MODL_create_block1(UF_NULLSIGN,coner,edges,&blk_tag);
   8 O- Z' T/ _3 `  J, ^$ p  E; _
9. // create a hole
   ' g' `+ t# v3 M1 L, Z' J- h
10. double dir[3] = {0,0,1};
    
11. double coner1[3] = {50,50,0};
    
12. tag_t cyl_tag;
    
13. UF_MODL_create_cyl1(UF_NEGATIVE,coner1,"h","20",dir,&cyl_tag);</p><p> // get the expressions
    
14. tag_t part=UF_PART_ask_display_part();
    1 ?! O6 Q" ^  M2 ]. ^
15. int number_of_exps = 0;
    $ G; H3 W2 e$ d+ l: q: O2 T
16. tag_t *exps;
    
17. char *str;
    
18. char expStr[133];
    
19. UF_UI_open_listing_window();
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20. UF_MODL_ask_exps_of_part(part,&number_of_exps,&exps);
    5 H& m7 f5 e2 V3 ~
21. UF_UI_write_listing_window("Before change the value : \n");
    
22. for(int i = 0 ; i < number_of_exps;i++)
    
23. {
    
24.       
    
25.    UF_MODL_ask_exp_tag_string(exps[i],&str);
    ) L0 W7 C1 u) X* T
26.    UF_UI_write_listing_window(str);
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27.    UF_UI_write_listing_window("\n");
    8 X& l, k) p! s7 b# P8 G. ^
28.    UF_free(str);
    ; y6 T! H/ `, |6 @( `0 E
29. }
    . A2 `3 ?* l1 G) D+ A, n# z
30. 
    5 {; M/ `$ {( U3 c/ |6 w% N
31. UF_free(exps);
    , S. E% |, @4 j7 {4 S
32. //Start to change the expressions
    
33. UF_UI_write_listing_window("Start to change the expressions : \n");
    
34. char *exp_str = "l = 200";
    
35. UF_MODL_edit_exp(exp_str);
    # ?  O9 i0 Q" k
36. UF_MODL_update();
    
37. exp_str = "\0";
    
38. //get the new exps
    
39. UF_MODL_ask_exps_of_part(part,&number_of_exps,&exps);
    
40. for(int i = 0 ; i < number_of_exps;i++)
    " _% g  Z' b7 c/ g  S/ A
41. {
    
42.    UF_MODL_ask_exp_tag_string(exps[i],&str);
    
43.    UF_UI_write_listing_window(str);
    
44.    UF_UI_write_listing_window("\n");
    . M$ o  I5 x4 m# Y  l9 {; Y
45.    UF_free(str);
    / D8 z/ P" k6 a4 s/ G6 L
46. }
    
47. UF_free(exps);
    
48. }</p><p> </p>

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