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发表于 2012-11-13 08:48:12
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1判断语句- i9 O0 }1 w6 \: _. U& X
if <condition> then
+ e0 F1 Q+ F0 m5 H5 ]7 V <statement sequence1>;
0 U& }3 X5 R' H" A9 W, m/ e elseif <condition> then( \$ n! }7 p: E
<statement sequence2>;, P# H% G, i! H* ~1 ]! L
else ; L' Q3 x$ c" { l7 [
<statement sequence3>;
' H. v* W4 R2 k5 [* g$ W) [ end;
9 j* }2 B- G# e& E" d; Q如果分支比较多，用：+ j! y2 I6 G z4 Q+ ~7 D
inspect <expression>
Z# v! a" s0 |5 n when <constant_list> then- H& Y) D$ c5 o) z
<statement sequence1>;' ~' g/ X2 P# S
when <constant_list> then; y$ U0 ]# G9 W/ |0 ?3 b# n, M
<statement sequence2>; g3 M- E6 z, d, }8 @
...
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<statement sequence3>;% Y& U: N$ E3 i0 a
end;
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% l( s1 G E* h) H& N. E2循环语句0 G. V4 ~& Y$ P* _' \
(1) from <statement sequence1>
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0 D' ]* ]2 S6 O6 h& Q& L <statement sequence2>;! i- V' e. J# U
end;
- p8 Q& P) z, w2 M6 \ (2) while <condition> loop
) v. W9 o f: I <statement sequence1>;
0 W7 `2 K: j- }8 O. ~; ?: v end;+ t" s8 {& I, T5 O, o
(3) repeat
' U9 {; @( s! b! j4 Q4 @5 B, H3 Y7 t <statement sequence1>;
5 M8 ?+ C) p- ~5 H& K4 Z2 S8 M until <condition>;2 W' K9 A. q$ j1 @
(4) for <condition> to <condition> loop
3 x' E6 H; Z7 h/ ^9 y K <statement sequence1>;
. _, Z1 I/ \) H9 N next;& c2 g* i9 N, X
3中断语句
- x( ^' w( B+ C( K* j" z waituntil <condition> prio <integer expression>;' W7 o" B. T5 p
% x* D( c7 q3 ]8 }% }% B. s$ P, Q
0 M! x: }$ y# i' e' v. x! x以上为常用的函数！
! H/ _2 P0 {1 X/ T" c还有很多，如有需要我把资料发到你邮箱里
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