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发表于 2012-11-13 08:48:12
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1判断语句/ Q9 K' q* r: R! X2 x1 i1 D
if <condition> then
" a) L3 s; i: `1 z <statement sequence1>;
0 E% Q* c- J) C1 w" y% R elseif <condition> then
. g$ t2 h, c2 x7 O: R- Y- R <statement sequence2>;
: i5 p; y2 }5 i o2 @. W. ~* h else
! }5 V5 c( P3 O9 C4 G4 r4 l [ <statement sequence3>;
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如果分支比较多，用：' @4 ~5 p2 A. Y) b1 w
inspect <expression>
9 L; [2 d$ D# |! U when <constant_list> then# X* w$ H4 \! ^8 z4 Y& U- ?
<statement sequence1>;
" u$ i! }, v4 m+ F$ r W& p when <constant_list> then
) o/ ?- g3 p: z/ H8 j3 d <statement sequence2>;$ b8 J1 |+ w# s2 q
...
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<statement sequence3>;' _: e) f4 x" g4 l5 T5 J
end;& W+ c7 j+ y) V7 b
* }9 f' z% z' C8 C( Q/ |9 U2 X# K8 L2循环语句( ~9 q2 W$ [3 ~
(1) from <statement sequence1>/ r9 X$ e/ p( X9 p
until <condition> loop! q* Y; R- m3 a$ w& m
<statement sequence2>;
8 S8 O6 p5 a4 F4 D6 d: |# | end;
5 N- b( ^' |! V6 K (2) while <condition> loop
( [: e. |/ B% C" N <statement sequence1>;& E9 {& W6 x8 V' J+ ^
end;
6 |; ^; v* `; X7 |$ M9 O (3) repeat
0 | x2 H8 |3 B" U- y <statement sequence1>;9 A2 x. ^3 g3 d( f) B6 H
until <condition>;& {& J: Y8 N- f; ?
(4) for <condition> to <condition> loop0 Y/ i, p2 K4 F; n5 {. u; M
<statement sequence1>;2 w& J" k6 { Z
next;- Q3 ~+ a# @6 l u8 |* q2 U$ i* o
3中断语句7 e, s& @0 @+ V3 S2 ]& y( K
waituntil <condition> prio <integer expression>;
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以上为常用的函数！6 e4 |0 J* ^+ X2 J
还有很多，如有需要我把资料发到你邮箱里 # }7 N! |- M" N/ J, i
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