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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
/ e) Y! I8 e x if <condition> then
4 f3 \* V% `/ Q- \1 G9 U0 U <statement sequence1>;
/ r l. d7 y- l* P1 d8 N& U elseif <condition> then
( z- |3 @& B0 j f. W) K' R <statement sequence2>;
- u7 T3 h1 y+ b; `8 B2 t else 1 _* u+ Z" Q$ m& X) s) t& x
<statement sequence3>;
. P4 `9 y/ O7 d5 E0 Z b0 k8 j! T end;
+ W% N/ b ^ O* w J/ `# C1 W% ]如果分支比较多，用：
" c' C: I$ N1 r$ d! u2 ~) K inspect <expression>* j' N, j @' i- p% ?
when <constant_list> then% U3 z; c5 R) Z4 h+ z- \7 i
<statement sequence1>;
6 d( R/ s& t8 Z( |+ B. q when <constant_list> then
2 G7 A" o, l7 V0 H <statement sequence2>;
5 T( q/ K: ]- n3 L1 g ...
" h: t: d' S* x; A+ @ else1 Y7 [9 Z L& N$ J( d4 k4 A( B" h
<statement sequence3>;+ Y# M) q v5 n8 S+ {" d4 E
end;
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2循环语句
g ^4 F5 f) l (1) from <statement sequence1>
5 f0 z/ {4 G9 c9 @: R( p, I$ Z until <condition> loop$ h$ O8 ?5 v( N% c0 L O
<statement sequence2>;+ D" s$ l8 P5 _
end;
/ m/ `) V5 f. }% [! W (2) while <condition> loop2 A; K7 M6 \1 y0 n
<statement sequence1>;
1 Z4 j' s2 I3 H+ H- g$ u4 m end;2 R+ X1 }7 v. M2 e) O1 U
(3) repeat $ w5 N* q# F2 r' @
<statement sequence1>;
* G+ d! o# t( Z( @1 k. E# |: D until <condition>;
9 S$ o1 _* ]. g- h* K (4) for <condition> to <condition> loop
' `* ]9 |( H& l% C6 p2 x <statement sequence1>;
- ?/ P$ o7 ?$ R next;8 Y. a, e% {1 c+ F# l; g+ f# N5 ?4 H
3中断语句
8 L/ u6 G7 i( u( [# H7 \4 [ waituntil <condition> prio <integer expression>;/ a/ `: u* B8 D! M1 S1 i6 `
( f6 s( a4 G1 D: ?& u, H
% i: w5 H& C! t5 f% l( a4 B5 R6 r5 n1 R以上为常用的函数！2 Q4 O! {5 B5 B! \3 I' t1 C
还有很多，如有需要我把资料发到你邮箱里
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