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发表于 2012-11-13 08:48:12
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1判断语句
6 q. ^* c" W1 r. @ if <condition> then6 o. u1 P6 \+ J# Z
<statement sequence1>;' m8 j9 C; b [% n+ T7 Q
elseif <condition> then8 ~) B- I# `7 F) ?) j, ]4 a
<statement sequence2>;; z0 g8 T) e! W$ T* b4 T" ~; z! q
else # Z2 ?1 E" H3 [
<statement sequence3>;6 ~7 }8 Y. l7 \- C
end;6 B n9 B$ |- ]
如果分支比较多，用：
* P7 v* |4 }- c2 b; W inspect <expression>( ^. h2 U8 g# x# C3 W" Q7 K. E, S
when <constant_list> then q O1 T" C; e- b1 A
<statement sequence1>;
5 K6 H9 V+ O9 ?1 g( T when <constant_list> then
; C/ b% \, N1 R- e _9 W) s9 n5 @ <statement sequence2>;
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else! `- D4 W4 S. k) |8 B7 {
<statement sequence3>;3 C: y1 A) f+ ~1 W3 `) V
end;+ F4 S! F0 ?* y
5 ~9 y L% p7 q2 K, z6 f* s2循环语句, ^; W+ ?9 `- `' P* S2 {
(1) from <statement sequence1>3 ?( g* P* t$ e! h* R. W
until <condition> loop8 @0 Q& L7 V3 Y0 r3 o6 p% y
<statement sequence2>;
8 P1 ]/ x5 R2 L3 i& c B end;$ T3 \; z* ^& n" n/ |$ [
(2) while <condition> loop+ G8 N+ I/ C9 [
<statement sequence1>;
- W( r1 d. T! P end;4 C( P9 H$ v2 l. N. Z
(3) repeat
5 a% b/ Z% I3 B/ u- Q8 D <statement sequence1>;
; a1 u- s9 s5 D& X% H until <condition>;. j6 S) S) p2 K" O( Z$ D$ C
(4) for <condition> to <condition> loop
0 g9 E& k9 l4 P- G, `( u <statement sequence1>; P# G) P$ k! a- z' {
next;1 J& h0 Z5 t6 N* {- r, F
3中断语句
+ O6 |) [9 M! `# [* d4 ] waituntil <condition> prio <integer expression>;
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' F! S1 R% z& J$ S6 s以上为常用的函数！7 K0 L- U. [% i9 K! f0 o" z1 L2 z
还有很多，如有需要我把资料发到你邮箱里 i1 {0 [. J! ~& A3 P
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