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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句. _+ H) U6 a ?5 q
if <condition> then
4 C F7 K" m# D i3 z6 s/ y <statement sequence1>;, A" p: q; I/ u. h" x# F
elseif <condition> then
! A- u' C/ ?- U <statement sequence2>;/ G. {) a! Y- w- H
else
1 s' u4 A& Z7 y <statement sequence3>;8 `, |: {" J9 J4 C3 p: |7 U/ ]
end;& e, [0 k {$ y
如果分支比较多，用：& ~0 b3 ^0 X7 s9 ]* ~
inspect <expression>
. M8 Q. Z/ M: x1 H when <constant_list> then
' U! |3 c& v0 k l1 Q <statement sequence1>;
6 k8 u5 v- O! g; }) v" c when <constant_list> then7 g' X, P0 {1 Y+ H+ l6 V( O) z
<statement sequence2>;. Q$ W3 S; o$ A! [3 I/ t
...! X- w8 U) K3 ~
else0 g1 U8 ~' N3 H7 ^, I5 }
<statement sequence3>;
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2循环语句
7 m. U5 W" I6 Q; A1 c. s! C (1) from <statement sequence1>
& k$ x. F. o0 z' @5 z2 A* x% D until <condition> loop
7 d) n" e( Z) x <statement sequence2>;& Z3 _( j% L# e
end;; h2 O9 E9 W' L+ S# f% P
(2) while <condition> loop
' Z# G9 a, ~1 C, H, w <statement sequence1>;
/ S: u- @; L5 m& q0 U. l. m end;6 g, H; f) x& ^( Q; B8 x8 D
(3) repeat ; }; W; b3 B5 n$ K$ N- v$ B
<statement sequence1>;
T) W q4 F! f# C+ A% ^3 Z0 h until <condition>;7 d7 u6 }5 S3 ~8 ^. W3 k* N% ~$ c. B
(4) for <condition> to <condition> loop
$ T6 @8 ?& o1 W6 E% C3 `7 m0 } <statement sequence1>;
5 N/ D5 U! t3 u1 ]4 |; b3 B2 D next;- o1 |( e1 \/ B6 y" a" i( V) n* x
3中断语句
1 F0 i. u) u. c6 X2 p" x waituntil <condition> prio <integer expression>;
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0 D a& X* d. f* w以上为常用的函数！) Y8 z/ F5 Y6 I# c Y) x6 T
还有很多，如有需要我把资料发到你邮箱里
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