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发表于 2012-11-13 08:48:12
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1判断语句
4 O3 Q/ w3 E" G; a! C1 S# t if <condition> then
7 @* f, @( @* E5 w# K b <statement sequence1>;% u% L) {! [ l2 U! y
elseif <condition> then
% s, T$ l4 y7 }( J3 H, v <statement sequence2>;" M4 b. `; J; E3 ~, D
else ; A- Q K) k) [' u
<statement sequence3>;
3 P8 W/ ]3 Q6 I' ?- p9 { end;
: ~" M3 B% {3 d! A3 E" ^9 b9 e: W如果分支比较多，用：
5 | U6 B9 s0 ^ inspect <expression>
+ H5 X2 z: j N+ o+ r: ~! q" h when <constant_list> then
) m1 k: x/ Z7 N% r <statement sequence1>;
: ^! [) Q$ H4 t; D5 [ when <constant_list> then
2 [2 J; X% E- p: s- A$ N <statement sequence2>;
' J1 D2 w: s3 N+ K" W ...
1 @$ C& R7 w* A: J, | else
- s- e; {! g) J2 r0 V6 M- e+ Z5 G <statement sequence3>;
7 S% ^ D7 `* G& A1 T! M# yend;# Y5 k: X* n6 O. H+ |1 f
! a; T! K! r) P% F8 |2循环语句
: Q/ I4 a+ D2 r) w3 a, z4 T+ ] (1) from <statement sequence1>. l* O. g" f5 K* I/ K$ [7 ^
until <condition> loop& d( a' A9 p; b# H' c2 @: |! |
<statement sequence2>;
$ [/ b+ N9 a6 B7 R) ] end;$ N! s9 D2 P& q, T# ?0 X# [' ?
(2) while <condition> loop
0 s/ r; j/ K t }1 k5 v1 w) U1 L. r2 E <statement sequence1>;
/ u8 |" F Q. Q end;6 i2 C/ z9 ~! n7 L! {8 _4 B
(3) repeat
2 h- X$ L: e" |. [ d6 _: b: ~5 v& \ <statement sequence1>;7 K9 C" t& ^1 G4 U. N1 [
until <condition>;8 w7 { \# S7 @0 `% c
(4) for <condition> to <condition> loop& ~9 y. @' i* b- X" r y* f
<statement sequence1>;" }' q n3 ^' Z: a4 H& Y: O
next;
) T4 B& k0 {$ r) C) F3中断语句
; c, l- P9 n( g, u* c; B waituntil <condition> prio <integer expression>; ~$ n# ]2 m1 `% R+ v5 u5 O
6 W0 b& d7 E9 ]) X0 ~
/ u& r( s; v. M) q* Y( Q以上为常用的函数！6 z+ Q6 S1 ^7 ~
还有很多，如有需要我把资料发到你邮箱里 4 t$ O3 m; L5 q& A( r" m$ b
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