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发表于 2012-11-13 08:48:12
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1判断语句
2 n0 A" D- J. c% P( p( |. o) `' t if <condition> then9 j( x5 F6 P9 | n+ {$ s
<statement sequence1>;
) k& W/ Y/ i4 R, H6 l elseif <condition> then2 I' |" ~- z2 u1 w+ K- Q' v
<statement sequence2>;$ [0 R. q, E# I2 p
else 1 l( Y* P* ^, n9 X% |, A
<statement sequence3>;4 z( J B4 G# Y, J: w
end;
3 N0 w$ r3 @1 `5 e& H如果分支比较多，用：( u2 [" S6 U' O ~# M7 y$ K
inspect <expression>
7 q; [# `" f( P% ]/ b+ c when <constant_list> then
4 q% U+ b8 O3 Q+ `- i' x8 M6 U <statement sequence1>;
- T; n# i6 i* c# |( w: S when <constant_list> then0 O4 D5 q4 z" U- m9 c% D
<statement sequence2>;
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else
. u2 n+ D7 S0 x' H: w# E <statement sequence3>;
! G" z) S, C# ~/ B' R, I% k8 L) f, gend;
+ @+ Y0 g. P1 y) {
( N/ S& Z) J) J2循环语句 Z- d" ?) }: U" c; k* w
(1) from <statement sequence1>5 }6 r; G5 h8 K( x
until <condition> loop
+ T/ n5 o! l+ L' J) K- B <statement sequence2>;& K% R `+ `* H! }
end;; m$ D0 c1 d+ x/ y5 V: u
(2) while <condition> loop: j) E. H9 F/ ]# I4 ?! N- K
<statement sequence1>;* G, x6 ]4 d9 V( z
end;
( i9 J+ y" H9 m! h# K y (3) repeat
5 l& B1 z7 C0 t5 Y: U <statement sequence1>;
, f; M: \% N! H# [7 } until <condition>;
% ^3 m) U' E2 @ w4 v+ a (4) for <condition> to <condition> loop
6 u! l, i. c% e% `( v3 V <statement sequence1>;. K) J: ~- T: y' X$ A' G
next;- b; g. d" G* H& k. a( \- H% I5 F0 |
3中断语句+ B2 t; L8 V% ~9 }9 m
waituntil <condition> prio <integer expression>;. @# d v/ q$ F0 a9 ^8 H0 x
' s: g' G2 ` m
+ ]: X7 Q; {& W, v9 ]# f以上为常用的函数！; y& Y z9 \; r
还有很多，如有需要我把资料发到你邮箱里 }3 U( M5 r7 \" o1 W
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