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发表于 2012-11-13 08:48:12
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1判断语句
; P" ?3 V, I; K- ` if <condition> then
) ]7 P. c+ e' g* n2 J( } <statement sequence1>;1 {- a( f) M! ?, k' P& Q
elseif <condition> then, U- T) R1 |4 ^3 D" w" S' W
<statement sequence2>;7 A4 @" B- P' D5 s( `) S8 @
else 0 A# c% t3 H& d9 x- \
<statement sequence3>;. `5 c; n9 k' |4 t. ?; {( n) \3 b
end;+ c' F3 F8 P$ f* H2 z
如果分支比较多，用：
" ?7 x! p% z" f! c3 ? inspect <expression>1 D: t# `- S+ E) V0 @6 @( y
when <constant_list> then
5 U' u) j5 X0 K: y) m <statement sequence1>;
: F; i/ G2 H, v) m) U7 R0 o when <constant_list> then
5 x5 J0 b$ _; l4 t5 L) O$ {5 s <statement sequence2>; @( M% f0 T1 x/ o
...
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<statement sequence3>;# k3 j# d2 A. m, O+ ^9 ?
end;# }- U }2 z3 H" L
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2循环语句
1 C* ^+ T$ }2 g% E3 Z (1) from <statement sequence1>5 Y$ Z' H6 h5 v3 x
until <condition> loop
5 U% y* v4 ]! k7 C- A! M( D <statement sequence2>;9 t! e& U8 {0 L0 ~- I- o" ^
end;9 |2 H( l; z, v+ [
(2) while <condition> loop) u7 X5 D, k7 c! Z5 b
<statement sequence1>;, P3 d& `0 x. r# D% h; j3 N
end;
+ [3 D. F: h3 l9 f6 X, s% d; T. H0 V1 m (3) repeat % O' X/ H |5 [5 b/ a( r
<statement sequence1>;3 o/ Y1 ^' @" ?: R* P
until <condition>;
% n% H! ]' u: D6 W/ X% N- | i (4) for <condition> to <condition> loop/ f0 O3 W0 E- H
<statement sequence1>;
$ t1 z$ ^- l8 y next;
$ G0 _. ?4 ^, F+ E3中断语句
! `5 J6 g7 k8 B2 J# ]9 B+ u waituntil <condition> prio <integer expression>;
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3 Z# J3 N# ~& Q( H4 ~. u9 |" }以上为常用的函数！
( Y6 Z! X- C# X. V% K& Z还有很多，如有需要我把资料发到你邮箱里 - L# E. a( W( w
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