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
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+ n, L0 `, \- W* I; [7 c6 r结果：

Before change the value :
% X# `) m% @3 g! N/ `: ^p0=20
; H0 p% M* z* T) z9 tp1=h
9 R: E0 J- ~- @3 k2 }w=100
! f8 M/ w" g9 ^* D. X7 N, U$ Z$ I0 o) ch=20
l=200
Start to change the expressions :
8 k! P* b" `) y* ?- [/ Yp0=20
/ X9 x; P$ o. @& C, G3 r& Jp1=h
w=100
3 V/ s7 D" b" Y; vh=20
l=200

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1. <p>
   
2. static void do_UGopen_api(void)
   
3. {
   
4. // create block 1
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5. double coner[3] = {0,0,0};
   
6. char *edges[3] = {"l=100","w=100","h=20"};
   
7. tag_t blk_tag;
   
8. UF_MODL_create_block1(UF_NULLSIGN,coner,edges,&blk_tag);
   
9. // create a hole
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10. double dir[3] = {0,0,1};
    
11. double coner1[3] = {50,50,0};
    
12. tag_t cyl_tag;
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13. UF_MODL_create_cyl1(UF_NEGATIVE,coner1,"h","20",dir,&cyl_tag);</p><p> // get the expressions
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14. tag_t part=UF_PART_ask_display_part();
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15. int number_of_exps = 0;
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16. tag_t *exps;
    ( W$ w; M5 `# T+ w
17. char *str;
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18. char expStr[133];
    
19. UF_UI_open_listing_window();
    
20. UF_MODL_ask_exps_of_part(part,&number_of_exps,&exps);
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21. UF_UI_write_listing_window("Before change the value : \n");
    
22. for(int i = 0 ; i < number_of_exps;i++)
    
23. {
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24.       
    
25.    UF_MODL_ask_exp_tag_string(exps[i],&str);
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26.    UF_UI_write_listing_window(str);
    
27.    UF_UI_write_listing_window("\n");
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28.    UF_free(str);
    
29. }
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30. 
    
31. UF_free(exps);
    
32. //Start to change the expressions
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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);
    
36. UF_MODL_update();
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37. exp_str = "\0";
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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++)
    
41. {
    
42.    UF_MODL_ask_exp_tag_string(exps[i],&str);
    / A& L$ L0 m2 b- ?1 i; v' ^7 l
43.    UF_UI_write_listing_window(str);
    
44.    UF_UI_write_listing_window("\n");
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45.    UF_free(str);
    
46. }
    
47. UF_free(exps);
    
48. }</p><p> </p>

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