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发表于 2012-11-13 08:48:12
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1判断语句0 p4 C* c1 ]+ n+ t: y2 ~
if <condition> then
& L( B& E! J3 P& N" B2 _ <statement sequence1>;4 L/ u4 v) ^) V4 m( P L/ `1 ~
elseif <condition> then6 J0 D5 S8 ~$ K
<statement sequence2>;
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<statement sequence3>;2 j: z" h) }9 f( S) A
end;
) Q6 y: W O. t ^# l. f& i如果分支比较多，用：
! ^4 F. P& c3 C) k# [ inspect <expression>
( H$ {( M# s: W# C+ d/ f when <constant_list> then
+ x7 R3 E% \$ h) D <statement sequence1>;
- C. p1 J. \; S when <constant_list> then/ h8 S( C9 M! b9 i
<statement sequence2>;
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else
! d% c& l6 y$ v2 Y8 \ <statement sequence3>;
+ N) v: D! |% c! ?/ \end;* w ]* L$ e m" J% B1 b/ q
' D. Y: E& Q( I9 q1 q2循环语句. @ D; S* s d+ H& ]
(1) from <statement sequence1>2 ~1 M1 c7 | i7 n& D5 [
until <condition> loop
9 m$ G4 g& ^! H; c. O& ` <statement sequence2>;- ?8 K7 U6 Y. L$ r1 O# h) {
end;. V5 ?" v2 W# a( q5 v4 A6 c6 I0 a
(2) while <condition> loop
! l, `5 O5 D* t. g- _ <statement sequence1>;% l" ?: r# W- g+ F/ s Y
end;
' L* Q. E0 O* x* ] (3) repeat ) G+ M: z# ^" f9 |$ k5 R
<statement sequence1>;$ {% r% P! q u/ D: p. c
until <condition>;3 G; H6 W. J6 _ T& B0 Q+ H
(4) for <condition> to <condition> loop6 n6 S) y, D4 S; H8 Z+ W4 w5 |8 y
<statement sequence1>;
: ]4 x% n7 c! D- Y- K9 k, C next;7 Z/ f5 f L7 H' K9 h
3中断语句
. T" `% l, k0 `1 z+ o1 W waituntil <condition> prio <integer expression>;+ i/ T( z$ p+ n; o
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以上为常用的函数！9 B; g' Q& |4 ?1 y7 {& q! \, O
还有很多，如有需要我把资料发到你邮箱里
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