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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; T1 i6 O9 ^4 e2 Z% e3 q结果：
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Before change the value :
5 o' w: d1 x$ Bp0=20
p1=h
4 d" c; B0 G+ k9 ?0 _: g3 Iw=100
+ @. D. \! q: B6 {* c+ th=20
0 E4 D' }, n3 B7 K4 Jl=200
6 Q! _- j& j% M1 l6 u/ @0 [6 Q$ K" eStart to change the expressions :
5 p* m) f/ W9 S9 `7 g' g+ Vp0=20
p1=h
w=100
h=20
3 @: a+ o" D* L3 E; }+ El=200
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1. <p>
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2. static void do_UGopen_api(void)
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3. {
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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;
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8. UF_MODL_create_block1(UF_NULLSIGN,coner,edges,&blk_tag);
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9. // create a hole
   
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;
    
16. tag_t *exps;
    
17. char *str;
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18. char expStr[133];
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19. UF_UI_open_listing_window();
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20. UF_MODL_ask_exps_of_part(part,&number_of_exps,&exps);
    
21. UF_UI_write_listing_window("Before change the value : \n");
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22. for(int i = 0 ; i < number_of_exps;i++)
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23. {
    
24.       
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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");
    
28.    UF_free(str);
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29. }
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30. 
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31. UF_free(exps);
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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);
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36. UF_MODL_update();
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37. exp_str = "\0";
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38. //get the new exps
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39. UF_MODL_ask_exps_of_part(part,&number_of_exps,&exps);
    
40. for(int i = 0 ; i < number_of_exps;i++)
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41. {
    
42.    UF_MODL_ask_exp_tag_string(exps[i],&str);
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43.    UF_UI_write_listing_window(str);
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44.    UF_UI_write_listing_window("\n");
    
45.    UF_free(str);
    
46. }
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47. UF_free(exps);
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48. }</p><p> </p>

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