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发表于 2012-11-13 08:48:12
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1判断语句, c$ G+ a( Y. u& v& p
if <condition> then
4 v$ F% H I' s0 Q4 t1 `5 N <statement sequence1>;/ C* x; X3 s& s! h' h r
elseif <condition> then
/ Q5 l; G) J* n5 ~$ @/ q- X <statement sequence2>;
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<statement sequence3>;3 _# s/ D+ Q. w+ v1 |' ~& `2 J
end;
) r$ @4 a# T& {( E* M如果分支比较多，用：
# x5 Y9 U- e7 `/ u inspect <expression>; h) k7 c, L' D( ]" l+ a* o0 T
when <constant_list> then
/ R& k% ?& l( C4 Y. {1 [7 L <statement sequence1>;
5 ?8 m+ H) M( E0 `0 v when <constant_list> then, n. W3 n' C* |8 h* Z# _! p$ P
<statement sequence2>;8 n$ Z5 ?# R3 e# ?
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else
2 ?3 G6 E0 ]) b <statement sequence3>;
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5 [5 {: e4 {3 E! l: Y7 o8 [& w8 m! ?3 _5 H2循环语句6 @* z7 L( P* k& y: w+ J
(1) from <statement sequence1># z4 a" B! Z2 B2 C0 U, e
until <condition> loop' R$ A0 x* v& X: S
<statement sequence2>;
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(2) while <condition> loop
$ x1 b; {1 q0 D <statement sequence1>;
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(3) repeat
& f$ D+ ]4 V; D$ g6 ?9 Z7 r- b <statement sequence1>;: N9 V% V `- C: m0 G( v
until <condition>; p2 K' j% Y/ K5 J; W
(4) for <condition> to <condition> loop
! \# V, r4 X; a2 L6 v( D" W <statement sequence1>;) B( b5 L# L+ a9 E
next;
% X' q4 O& W2 [1 e( f: c3中断语句% g- [* x( |. n+ v1 N: V0 z2 B+ O
waituntil <condition> prio <integer expression>;) t( R3 x1 n2 F' D# t* a! Q
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; a0 ?1 d- H) ?8 p' n/ X1 b# n以上为常用的函数！
n4 Z; V1 S$ d$ o8 n还有很多，如有需要我把资料发到你邮箱里
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