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发表于 2012-11-13 08:48:12
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1判断语句) `9 g1 `5 k3 g7 S1 B8 K: V9 n6 l
if <condition> then
8 d- A! _& C" A4 P8 z8 C* m <statement sequence1>;- ~" F- n( {, X: t$ Q7 E8 [9 l4 e( X
elseif <condition> then
2 s, g% v4 G% k- v <statement sequence2>;+ b' k5 F7 y9 T- r* X
else
' K f" S) h' u I; b8 u9 q <statement sequence3>;
+ W4 `5 g' T, _" u end;
0 y4 _; Y, C9 L; o! N3 j如果分支比较多,用:# R- ^( B. o4 @5 y5 k4 R( `
inspect <expression>5 y2 O i& W8 ^. G6 y
when <constant_list> then
' l; q' `, C/ v; ^5 E2 A1 t2 E <statement sequence1>;# D: {5 q' I3 G2 ~2 ^
when <constant_list> then9 C* o4 m+ ~3 ~3 O
<statement sequence2>;9 m r+ J$ _( t. C- i( ^( e
..., B% V. `+ Z7 [9 H
else
+ ]& G+ b4 j* A' h <statement sequence3>;
" o2 @# W, K' P' Nend;
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; B/ {+ k3 s L' ~( j2循环语句
9 J0 |5 [) v' |7 Q (1) from <statement sequence1>
" ]1 N# t* q/ |$ H* f until <condition> loop
3 P1 N0 f0 q! P8 P1 q <statement sequence2>;
) g: E9 o/ i( U+ z+ o- Q* R end;
0 J1 o0 k# ?9 ] (2) while <condition> loop2 H( u( O1 x# l+ h
<statement sequence1>;
6 S3 ~3 s8 U8 A8 A" c& x/ S end;
( O9 x- p( o1 |5 {( \& |$ ^. {9 b5 f (3) repeat
5 \5 @% H1 B5 F) `0 j( t% a <statement sequence1>;( q, Z! B( ]7 Y) X" Q8 }
until <condition>;2 j# X8 ^) J. b: m( \6 n/ w5 l. d
(4) for <condition> to <condition> loop
1 K5 z$ n" h( `! N2 I6 u: u <statement sequence1>;
- x2 u3 @" n! o8 k0 l2 O next;
, U$ L" J) Y* i, c3中断语句# L3 G" u4 t1 @5 z: ~2 @- y
waituntil <condition> prio <integer expression>;1 a2 d* Q* d- Q, }' C
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以上为常用的函数!
, d. ~( ]: b0 s还有很多,如有需要我把资料发到你邮箱里
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