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发表于 2012-11-13 08:48:12
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1判断语句
8 e& t& E: p9 F& z5 u- { if <condition> then
0 ]( l, V3 ^. h1 Q- V <statement sequence1>;
7 G( x0 Z$ F4 I% b/ Z8 u9 a9 [) |4 h elseif <condition> then2 l3 {7 ?" D1 ?
<statement sequence2>;. K* x0 c d1 A0 q- T
else " G. `1 e) P0 i1 n
<statement sequence3>;# S, c: D6 M) t9 V* B
end;
3 j. J, E3 N1 d如果分支比较多，用：
. b6 b5 `; c3 ~" v5 Y# D0 ^ inspect <expression>. d' A" e( a) E* Q/ @6 y% m0 C$ g
when <constant_list> then
3 [" S' u9 O6 t$ Q <statement sequence1>;# _$ \1 T4 U/ a+ [( _( W$ o" ` A$ E
when <constant_list> then
+ t: b9 M+ f, U: Z/ m- @ <statement sequence2>;
6 u$ b9 Z; [1 O# P; Q* Z; s ...
; o; y5 ~2 P6 S! x, Q8 ~- M else
( z" F% M, V- O" G: u <statement sequence3>;
0 n6 X+ H) i# y+ Z2 z7 b- Yend;7 d/ ?: b; [0 x: |
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2循环语句5 l" }8 E+ V7 ?1 f% B
(1) from <statement sequence1>
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<statement sequence2>;; }& U1 E! X5 D% c% V. | F, k
end;
4 }6 d9 }1 I4 ^4 t x5 t' F! `/ C (2) while <condition> loop
- ^" U" ^% J; k1 ?% }1 F$ ]! M <statement sequence1>;$ C/ Z2 m8 m& b$ W5 D4 v9 G4 c
end;
. F0 P$ m) U7 ^1 t (3) repeat % s0 `: F, d4 H$ a; y- T2 B; l* X9 }: [
<statement sequence1>;
* ?5 W6 }- ~0 l2 j until <condition>;& S4 G z% p/ i+ i2 _8 g- V7 h
(4) for <condition> to <condition> loop3 f2 U) ]: ~5 f0 x
<statement sequence1>;
( `* E4 D2 J# j0 x8 e next;
4 _. N! S* o% `) r2 v3中断语句
9 E% A1 |) I! l! s4 N waituntil <condition> prio <integer expression>;
* J) l' [. u) [9 o, P$ M
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以上为常用的函数！
4 {( X5 E4 r/ I" S7 y; S6 i" |9 {- Q还有很多，如有需要我把资料发到你邮箱里
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