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发表于 2012-11-13 08:48:12
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1判断语句1 i) p3 c; M2 ]# i
if <condition> then
9 L3 A6 x% B1 [9 F <statement sequence1>;
+ O+ v$ R; C* [ elseif <condition> then7 g3 W2 D/ |, m5 x6 _0 D3 p( V
<statement sequence2>;: f8 C2 L i. Q6 i a
else
" B& ]+ q( x' ?6 P0 _! I. R) R+ }! J <statement sequence3>;! W* v( y& {1 ~0 H" F
end;3 O$ O* z1 m8 d: `+ k$ J' F' X
如果分支比较多，用：; ?! M% i- o& |
inspect <expression>
9 @6 x* K& a' n+ X' R5 R; t F when <constant_list> then/ _2 H6 c* ]0 ^) D& |- v
<statement sequence1>;$ f& H7 V- c9 R! a
when <constant_list> then
; Y7 A+ \$ E$ _6 G' H/ l <statement sequence2>;/ D) K2 Y/ ]+ G: c0 u" C: A
...
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<statement sequence3>;
; A9 }3 ? Z1 d/ Z+ M! Xend;! u3 G# v7 O+ C& U! k# E/ N9 Y
1 Z# p& `( q- d8 e; {; B0 T; |2循环语句
, r/ L. N; {3 v6 P) t/ I3 y (1) from <statement sequence1>8 ]+ i4 \1 S' @3 Z
until <condition> loop8 N3 c/ [8 U6 `1 p
<statement sequence2>;
4 h. P4 }3 n, u4 U `, H; Z end;
: o* R) j8 Q- `6 q6 B( A (2) while <condition> loop+ k- A, q$ V% v" m1 h! ]' [; x
<statement sequence1>;' m) C/ Z1 F w/ h
end;
$ o6 G/ A+ G6 W7 C* z) J (3) repeat / P" O* A8 E0 i3 J) H# {3 T$ @( c
<statement sequence1>;
* x7 k' a" {& a- W; @ until <condition>;4 p9 M1 E7 x- @+ L- C
(4) for <condition> to <condition> loop+ E8 o$ k' t) o; H; S! u0 x2 B+ ?
<statement sequence1>;3 B# n, u! ]+ o4 g, Q
next;9 \6 {% {" o3 h. S! i
3中断语句+ F, D2 x) X% ^* j8 q- F6 B4 ]
waituntil <condition> prio <integer expression>;% G* M& K1 r! S
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以上为常用的函数！
/ S/ d7 I O; ^& g7 S4 ?) |4 H还有很多，如有需要我把资料发到你邮箱里 6 U7 l9 V* O6 v$ \6 C1 r) e( m2 k
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