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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
) w+ q' ^ j9 Z: K7 I9 R6 D* a if <condition> then
9 ?2 j) ]/ v. o: u$ S$ p <statement sequence1>;
! D8 M6 P. B4 G+ U. m+ L, j1 d6 M, } elseif <condition> then W5 [% H4 ~3 Q- n' s
<statement sequence2>;
' o# z+ y: }$ c4 K else
) X: N9 v+ u' G, G+ w- `' h/ M <statement sequence3>;
5 h { f& L# w6 @! Q; T; j2 z+ H end;0 @$ r% g. u# Z' m5 {3 z
如果分支比较多，用：+ l |) f3 a( L+ K
inspect <expression>
# P$ [6 P0 P; ~5 }% W8 A when <constant_list> then! `% E* {# {0 G
<statement sequence1>;
[9 t4 D3 N& m3 i- Y: s* u- ~/ R when <constant_list> then
, v! |& _4 ?* @+ z <statement sequence2>;9 ~( p8 ~7 |# h8 U( [
...
/ {$ @4 p# F- A* x0 y else$ X' F3 F" r8 Q' v2 }1 v
<statement sequence3>;
$ C( ~7 L4 n4 \( C% n0 [9 \" Nend;$ K; T7 ]+ ~6 M K! n$ ^% l5 T
6 \ s1 ~" X2 R6 J; h5 ]: g2循环语句
7 g% l7 P6 l# p9 U (1) from <statement sequence1>
, |# b S1 p- O& l5 v! ?2 W3 e6 T until <condition> loop
- b& c; b j, u <statement sequence2>;0 `) G3 x0 W5 K7 I# M* u. f" v
end;
+ W9 A: f; m3 v0 T3 Q0 ^" b! W (2) while <condition> loop
# d5 q+ a7 z4 {* `9 w7 T7 n, y/ ]3 m <statement sequence1>;
* S0 c1 G9 H/ j+ Q Y2 y, l end;
* d6 X9 B% _# r" b Y A (3) repeat
, I- l4 i, t0 y <statement sequence1>;
' Z' ] q2 G+ B until <condition>;( Q) U. y7 V8 l5 W/ l. m- n
(4) for <condition> to <condition> loop
# x8 o9 k( a# D$ ]8 X# I1 \/ | <statement sequence1>;
- F: a5 d1 g, L# o2 F" {1 ? next;( i+ Q& u1 s* L8 L. K
3中断语句
/ V6 D' ^3 ^5 b& s7 E waituntil <condition> prio <integer expression>;
, h: L, @& D9 Q6 K. e! a, @
9 u7 C9 a/ L1 f' m, e* N$ v2 J0 Y
以上为常用的函数！
$ C; E( \+ f+ w& C' T, C4 D; `还有很多，如有需要我把资料发到你邮箱里 ! o9 `( F/ t# ]; T: w' n; W# ]+ ?
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