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发表于 2012-11-13 08:48:12
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1判断语句, {, p; ?% D; }: U a
if <condition> then
/ {1 _5 `. Q/ f" \' X4 K. _ <statement sequence1>;
( A' l) h1 {7 g elseif <condition> then( A# X% k6 h: f6 k+ e# e) v5 t. K
<statement sequence2>;
( D7 k2 k' k s else $ s) U$ R, U X# N \3 Y' b4 U
<statement sequence3>;0 X$ E8 Q. c5 @6 e f/ \
end;
8 u" S. G1 J! _如果分支比较多，用：3 f/ G) J1 R+ S5 v- r8 I
inspect <expression>9 W. a. V, y9 L
when <constant_list> then- K% R' n L# L, y# o/ T
<statement sequence1>;
. r$ V% M+ { p9 j when <constant_list> then
; l; L" r+ C3 q) j* W9 | <statement sequence2>;' n5 Q0 I) ^; q
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else- e0 Q, X8 _% _8 n* H( o
<statement sequence3>;! J7 ]1 K/ a- V- s& W& \
end;1 i3 Y+ A8 e; m: [
$ I% P& ^! z- L- S5 n$ A2循环语句' l7 ~6 L; }* \; v2 g! l
(1) from <statement sequence1>
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<statement sequence2>;0 z3 D- P) \1 D6 W9 W3 u
end;
' F* O$ {4 j, d/ k (2) while <condition> loop
8 d; q4 f; d. h$ D, u <statement sequence1>;$ e7 V+ k/ G4 R+ g0 n: a& h
end;5 x, |1 C ^' u
(3) repeat
. l( p& M; A# j' c! m$ q9 h( u- K <statement sequence1>; K4 p( r% }2 J) n
until <condition>;3 G7 L9 _/ f! H8 d0 v1 ]! q
(4) for <condition> to <condition> loop
. k' Q+ T! s/ E0 c8 w <statement sequence1>;
q8 g2 r2 M3 U next;1 s% d/ Q6 o5 `1 m
3中断语句3 _7 I$ b' i" }2 G- @# D
waituntil <condition> prio <integer expression>;: n# H$ j8 o/ E! l4 C/ M% r$ \) t
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以上为常用的函数！
" X7 D8 e# m7 x9 N3 M6 E& S还有很多，如有需要我把资料发到你邮箱里 # O5 c5 l/ x' V* c
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