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发表于 2012-11-13 08:48:12
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1判断语句
! m) a) B8 `' B( e% _ @- z if <condition> then( q+ O* K9 B3 [% @3 h4 D
<statement sequence1>;% ~* x1 h9 ~; O" L& } g
elseif <condition> then
( U8 [6 U X9 B. e <statement sequence2>;
( g, ]# a$ X# ~- y: E7 N% i else
) x9 c' E8 R6 B2 `: v( @, D' v <statement sequence3>;
) w- C M# m+ L* ~) \% X, x end;
1 _" N' Z" n7 A$ @4 j! a* `- _如果分支比较多，用：& B- i4 A: w2 T8 b# a
inspect <expression>
% h& e, O" K6 x# A when <constant_list> then
( y) h) u) a0 B <statement sequence1>;
3 b/ B9 v! T+ P- ?8 i) q when <constant_list> then! H2 y2 f& [$ M, N
<statement sequence2>;
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else
5 g- y' |- A7 t6 x; o <statement sequence3>;
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" D9 |3 w4 R0 Z( W( B2循环语句# ~, J8 y$ X' e
(1) from <statement sequence1>7 U* o+ s! g1 e1 N; n A/ Y) f
until <condition> loop
4 A0 [6 x: [1 w. ]8 [ <statement sequence2>;
) a# B! U1 ?$ `( D1 g end;0 r2 s* _- {7 A" ]
(2) while <condition> loop0 Q+ o1 a/ E; S. h0 K- N4 I
<statement sequence1>;
. j. t7 Z5 g$ L: D; I) t9 G end;
/ o# K; F. E/ K (3) repeat
# B$ |+ S; ?' C" F <statement sequence1>;
! G* x2 y) J4 | i5 J, m6 j- \7 e until <condition>;
" j& k, F% q$ y (4) for <condition> to <condition> loop
6 k: ?( F1 C5 e* E* {2 k3 { <statement sequence1>;
7 |$ O" b% q' M8 |3 r+ p next;) Y9 b; `4 Z, h( ]
3中断语句
/ i2 G. M! W. e; n' R waituntil <condition> prio <integer expression>;: s! w+ Y' k! Z( U6 _! `/ ^
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以上为常用的函数！) [9 d9 h* @# z" N* `; m0 g
还有很多，如有需要我把资料发到你邮箱里 : D, L7 K3 s1 b" M
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