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发表于 2012-11-13 08:48:12
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1判断语句
2 |9 ^5 `$ n* B; c# Y$ \# l# @% C if <condition> then6 w9 C1 t4 \6 g! t5 R+ `
<statement sequence1>;) p' q! p; H- u3 d
elseif <condition> then
, {1 }' s: K0 a, m* g! g/ i2 g <statement sequence2>;1 v4 @2 N* L; v+ t1 }
else 8 E; B o9 |$ @0 [8 {, ?$ v
<statement sequence3>;
9 o( `( Q9 u" A# F end;
: z# m- d: R. Y- p/ ?# j1 D5 F" }如果分支比较多，用：& k( V9 M2 N7 b) T
inspect <expression>
+ N/ o! L& d0 e3 R+ e) Q0 { when <constant_list> then; d; a9 f k& h$ z0 O8 v
<statement sequence1>;* B3 J5 E5 Y) A1 g+ ^/ t
when <constant_list> then( F8 @/ P$ z2 e
<statement sequence2>;
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else) N* F( E( U# T1 G; u
<statement sequence3>;
3 L( S; }) k" T1 Y" {% fend;* x3 q* {; Q! d7 v9 n& }2 w- O; O6 M
/ X- x5 Q. ]6 ] L2循环语句; A, w w" i9 H, k
(1) from <statement sequence1>1 K% f$ t+ O, y- }7 C
until <condition> loop
( \% w3 r( H6 c# k1 k: L. e <statement sequence2>;
# ^5 l5 H9 a9 b0 L) D$ h end;2 p) X9 I+ f- j
(2) while <condition> loop" l/ I3 n8 P& }- i1 `
<statement sequence1>;, \: q, t' H+ _6 |
end;% U/ L$ C m3 N
(3) repeat
( e v6 j. B: R" O A8 z2 E& N <statement sequence1>;- D; ]# m, `) [. ]! D3 n
until <condition>;
3 f0 J$ v) C: |* k6 N; O3 | (4) for <condition> to <condition> loop) m& R1 |, {5 Q) w/ L2 Q: ~3 [5 P
<statement sequence1>;+ {6 G+ P9 L/ a2 m) C
next;
. c2 c8 |' P6 ^6 ?3中断语句
8 Y8 x( I: D [/ K- m F waituntil <condition> prio <integer expression>;
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$ I: X5 @: t4 R以上为常用的函数！
7 l9 [& c* M8 m/ F还有很多，如有需要我把资料发到你邮箱里 0 t* Z4 S* f1 j3 F6 C' _7 P9 C) A
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