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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
4 _1 W# |6 m/ |3 b5 V if <condition> then
% ]. f) [! s& |3 W <statement sequence1>;. h9 b7 L+ G; _7 [) q" _. h3 r
elseif <condition> then7 c4 g9 e" J' {* R% q
<statement sequence2>;
2 k- d$ G" P( A& ?1 E! u else ) ^8 ` B& U, @3 ~
<statement sequence3>;
6 S" ^! Z3 @% j+ Z end;
9 C8 O" C) O% [- R9 _$ m+ _, N% J如果分支比较多，用：
5 `, C x& K. x; Q+ }/ E inspect <expression>6 z$ o6 O' E1 }9 k: r& D# K% ^
when <constant_list> then6 L. v$ ?! b. n' o+ h9 H3 O
<statement sequence1>;8 M- B( v% {# ^7 x0 z! B
when <constant_list> then0 h/ @) }' ]$ c* r9 |; b
<statement sequence2>;) v* K' m. m2 E# {( m
.... m) k x5 R6 ] {
else4 k+ {6 S$ z9 |1 [* h
<statement sequence3>;
, t+ r% s1 s9 P/ i6 t: Eend;! b! k- |' j+ O( \' s
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2循环语句4 B( u( J' @% n* A1 X' B
(1) from <statement sequence1>& T6 U5 Z9 V* i! d
until <condition> loop7 p) J+ ~2 l" b: U5 z
<statement sequence2>;. d! V; C* k# x, D3 D
end;
8 R3 P/ l3 U7 q& H! w (2) while <condition> loop8 ~ B1 |- }" c5 O4 d6 c/ |
<statement sequence1>;
( @6 _# b% h7 V( C. A" f end;
" B- a+ Y; y) m+ K! f (3) repeat ) }2 @, v1 q8 A7 ]% C+ n$ `- B
<statement sequence1>;
& n& V, R) n6 ^, n4 V until <condition>;
' w# H# f P7 T2 n' C3 ?/ I (4) for <condition> to <condition> loop# |/ f4 Z8 j' Z1 `: U
<statement sequence1>;7 e; G+ _, L; g3 b. i
next;2 ?% H! S, q! U% ~+ O
3中断语句
3 W6 `0 y: |3 P( j$ h( x waituntil <condition> prio <integer expression>;- P5 M8 `0 r G2 e: a2 b& N0 Q
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以上为常用的函数！9 F3 B; q2 w6 f% C+ x- l
还有很多，如有需要我把资料发到你邮箱里 7 o' i1 t! \6 f9 y) t
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