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发表于 2012-11-13 08:48:12
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1判断语句) R% e9 l0 g1 y z A/ v
if <condition> then- b, Y& [& c; @8 \: W. ^$ V7 e
<statement sequence1>;9 v* e) R6 r- ? R" r; q% P( u
elseif <condition> then, s$ T: p* W" [" b
<statement sequence2>;6 h( d9 G+ P. p8 Z
else
) K1 b0 V. t! ]( p- P* y7 R <statement sequence3>;
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如果分支比较多，用：) S+ {0 Z6 u/ E% b+ p
inspect <expression>% n9 s. Q5 l2 s1 h* m% U
when <constant_list> then
c$ |! a+ i0 M, E% u e <statement sequence1>;
$ Y) Q+ o' M5 E& Q5 c* _ when <constant_list> then
9 S! j5 \1 w$ x: W# W6 c* ^. b <statement sequence2>;& \, {" s: y1 \
...
* ^* b" P; l, v/ D6 c else
& g7 A$ K* H! ? <statement sequence3>;
! H8 F9 w1 R; P9 Rend;- I- R+ [$ V0 H! `' U# o, j
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2循环语句; f5 _) H5 i3 |' j
(1) from <statement sequence1>8 W p' U* U V9 }3 M% @7 Y% b
until <condition> loop
5 Q2 P P4 w3 d+ ]* `3 Y <statement sequence2>;5 Z3 O# f7 d2 v( b
end;
) T6 P# M5 O( e4 L. E+ ` (2) while <condition> loop
% b' L% Z; A2 F; i" k4 e <statement sequence1>;# j! W' }2 \8 Q" Y
end;
3 r% {/ Z) q2 G4 n7 e+ _7 w" |# k (3) repeat
' N- q% v( ~: P: v1 ^+ d; z <statement sequence1>;
* }& y/ M: v) B* u. `. e0 H7 ~ until <condition>;" ~) ]7 T/ K; X, f/ h: T
(4) for <condition> to <condition> loop
. l2 n( Y1 `+ U7 z, m <statement sequence1>;
+ K" v$ E8 b- p( o next;. D$ l! j/ l" J7 X
3中断语句3 m$ s( B# e, |( G5 k ?4 M
waituntil <condition> prio <integer expression>;: Y' A( ?9 {: I
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% ]8 O/ I( H& t9 g$ C% k. k q7 K8 {以上为常用的函数！
4 d. U8 ]9 A" a9 Q: }还有很多，如有需要我把资料发到你邮箱里
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