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发表于 2012-11-13 08:48:12
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1判断语句
6 v" b0 c* N+ @0 o4 F# ~ if <condition> then$ L/ Y1 c4 ? ?: {8 T! @
<statement sequence1>;' v* r" |+ m9 m
elseif <condition> then5 n7 d Y/ J# X y: [# t
<statement sequence2>;
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<statement sequence3>;5 N, q6 e M1 ^
end;
/ W9 H% b5 E$ V+ t+ o3 B& ~* ]如果分支比较多，用：
4 w! h; K+ B1 C7 t9 u1 a. p inspect <expression>
5 v; L, I% j+ X+ B" u( M; u when <constant_list> then
- G I4 F6 [( L) @; O <statement sequence1>;9 R# T+ x* u" T2 j
when <constant_list> then
! D `6 I) t# G <statement sequence2>;' }2 v6 {- Z4 I
...5 |& I& v0 P7 R6 m6 K( O
else
. \$ E# X9 Z* h$ } <statement sequence3>;
( Y* ]2 s; x5 p6 U- u$ q; ^. ~, Xend;
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- s) ?9 x: M/ b( C8 Z8 L2循环语句% E' v2 l& z/ B- N
(1) from <statement sequence1>
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<statement sequence2>;
2 z2 G# `1 t2 n+ k, {9 {$ ?: T end;& b" s0 x3 W Y, K' ~+ ]% x
(2) while <condition> loop
& w# }1 G+ {, r- w9 N4 Z <statement sequence1>;- D- P# Q9 h1 O
end;$ o! d5 B5 C! Z7 T& j
(3) repeat
z V% @9 |( m+ v* @% ] <statement sequence1>;. V( W$ q, i5 F) } X) X
until <condition>;
+ p* r' `/ M# d (4) for <condition> to <condition> loop
6 Y1 g0 T6 q$ g* j/ i4 N. | D7 m <statement sequence1>; p2 T" J. X3 N; o0 E$ P0 Q
next;+ Z2 P& a/ y, D; d' y9 g" d
3中断语句
# j4 }/ X# c. { waituntil <condition> prio <integer expression>;
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以上为常用的函数！
4 t1 v* i4 m! k还有很多，如有需要我把资料发到你邮箱里 : \- X6 m: S6 H# b; s3 |
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