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发表于 2012-11-13 08:48:12
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1判断语句3 y' f2 Z+ B0 |
if <condition> then
" X' F" |, R; Q# Y, P; h <statement sequence1>;
5 n$ {2 `. Q1 r- x' a: V( \& h$ h elseif <condition> then
0 {! V {4 c6 k5 n Q& a! A# z <statement sequence2>;
) Q; I/ _" r9 H else ' I- N7 [& u% |: T
<statement sequence3>;; W* t+ m9 T. R. h$ D
end;
1 L* ?; z8 C7 |, r2 i3 o5 v# K" l如果分支比较多，用：
$ o& ` z/ e4 o6 d' v4 z inspect <expression>
. v- J; V9 k- u* [$ e) o0 P when <constant_list> then
* I' r; U- V1 |) i8 U& @+ x8 r <statement sequence1>;
* z/ @: J8 J! a( q1 x: X5 N when <constant_list> then
E$ s1 ^/ D2 C' d# X0 [& P <statement sequence2>;
0 f9 M, Z% I. g% E/ Q ...
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<statement sequence3>;
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7 i3 f# r/ h8 `* e3 m9 Q2循环语句0 O' k" m2 r# d* t
(1) from <statement sequence1>' S# h7 h, X& T, ]
until <condition> loop
( f! Z; ~0 y, \/ v2 `; o <statement sequence2>;; u! ]2 M( u& s. `
end;) Z9 ~7 ~8 M0 t$ K- ~
(2) while <condition> loop
2 j$ `: X1 L ]6 J9 | <statement sequence1>;+ c- ]: o# H A
end;
. j% r6 R3 {6 S6 r3 t/ m (3) repeat 0 P+ m' y/ v/ Y' i( S& ]
<statement sequence1>;
: M% W" T: R+ g. t' Q# G until <condition>;: l$ {8 h0 _. X2 P
(4) for <condition> to <condition> loop
, t1 ]6 P J6 f; [4 G: {9 B' ~: W <statement sequence1>;
. e& ?! [: q/ M0 `1 k next;, {. \% L2 ?4 [+ d/ x
3中断语句& S G9 O9 O3 J3 r* l
waituntil <condition> prio <integer expression>;
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以上为常用的函数！( U6 b& K. r* m( P# @- }; W6 o8 t
还有很多，如有需要我把资料发到你邮箱里
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