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发表于 2012-11-13 08:48:12
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1判断语句8 G3 e, _/ P" D8 W5 l! j* _
if <condition> then; f: [; _* q) \
<statement sequence1>;
9 L# s* { Z! e7 s. j9 G" ~0 X elseif <condition> then0 G9 o* Y# S G. ~$ o
<statement sequence2>;
% ]( _ f5 u" [. Q: X: o3 j! F) ~5 o3 j- z else 1 r( F# ^8 J. {9 L1 q2 i
<statement sequence3>;, z: n$ I9 X5 z
end;
3 G% K, V5 x. G+ E$ q; p如果分支比较多，用：
9 t: i1 I! E" f7 ^. a inspect <expression>
+ S0 t: p/ i5 M# R when <constant_list> then
0 _8 w7 A. ^* ?6 B O2 f. S: F <statement sequence1>;' ^1 w7 y- m+ z$ a6 A
when <constant_list> then
2 D/ s5 g2 i" H <statement sequence2>;, [: D Q- S; I7 ^3 P
...
% X+ a3 _; Q# t3 g0 E* x: k7 W1 q else
- X: k g; G" R @* d2 l <statement sequence3>;) E: q: ?2 ]- Q& w
end;
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2循环语句' v7 l5 W( d( m' l8 A
(1) from <statement sequence1>! C1 C* o7 R& l. B& { {, z
until <condition> loop
. H0 [ B' t/ M- p5 X: x! X) p4 W <statement sequence2>;
2 B, O* X/ H* }5 x* E+ K end;
7 d- r4 T* D9 @9 k, [; d (2) while <condition> loop
4 J$ j7 }% a3 u. M6 c, T9 L" V <statement sequence1>;: v- _+ X) ?, q+ g. |8 ] i
end;; O# v B H, f* T
(3) repeat
" @& j- i8 a8 R' D% z5 `. o0 [ <statement sequence1>;0 d$ R6 A" t9 ?
until <condition>;
& r* v2 P( R1 W; _$ r8 b+ j/ p* T+ d (4) for <condition> to <condition> loop0 y; k/ Z# k3 n2 t8 t, A
<statement sequence1>;# l( u# b% o# p: ~) K
next;8 r+ \; |" ]% Y7 z9 B& b& T
3中断语句 Y2 z$ N t ^% }" e
waituntil <condition> prio <integer expression>;" i5 r& i- Y% {
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以上为常用的函数！# _6 v; @$ ?3 m4 s F8 F+ M
还有很多，如有需要我把资料发到你邮箱里 9 V5 A6 y: X! V" N* y3 W
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