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发表于 2012-11-13 08:48:12
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1判断语句
0 c* {- i' H! A+ Z7 E if <condition> then
+ [7 ^+ h! n. h# r <statement sequence1>;
" A/ C4 m5 }' C! S2 s" C B, V+ O8 Z elseif <condition> then
9 G$ [( Y) h! N <statement sequence2>;6 s- M+ k* y% D; y; Q
else * L' O+ ^" `- |' M: g- |# @8 `' Y
<statement sequence3>;* l4 P& v6 g3 C# Q5 z4 m
end;
* V% w3 C2 N. m2 A( I, G+ K8 b如果分支比较多，用：
( x, n: ?. i& z | inspect <expression>
. F1 J7 q4 U6 h4 t3 @1 f when <constant_list> then! O* ^- {; y: A& \, ?; K
<statement sequence1>;- ]# ?' O% o, d* p! G* o
when <constant_list> then& ]! o% R% i0 o$ \1 g4 p6 m; Y
<statement sequence2>;* r$ r7 c: g* H( }$ g
...' t' }/ A: f% y7 y$ Q# \, c6 k# E3 A) {
else L- x9 h4 [0 M( c3 p8 y& i
<statement sequence3>;
( G+ p) v1 e7 C( e: d4 Wend;
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2循环语句& b. H2 O; [) Q
(1) from <statement sequence1>
" Q3 M5 s$ }7 u$ l6 v6 W- } until <condition> loop; G, h3 p/ h3 }: R6 k
<statement sequence2>;4 G' m: Z' R2 [) Q
end;
+ Y$ a1 ] q& w" b# a1 Q (2) while <condition> loop' @, _/ _9 Z4 l6 p% S- c
<statement sequence1>;* h T( Q$ A& [# X! D' B# z
end;
& y2 d5 g' d6 ?) \3 \; m4 G (3) repeat y. N( M9 ^( M8 B+ s. j( \" Q
<statement sequence1>;( X8 X4 h1 q: x1 K7 G; R4 t8 N6 I
until <condition>;' k' ?/ P8 I) z
(4) for <condition> to <condition> loop
7 o9 @; h$ i5 v% f/ z; M <statement sequence1>;
0 h' U0 m) @: `. a next;
" k7 T+ P8 |- S5 r3中断语句% h* o+ Y2 `6 R1 _
waituntil <condition> prio <integer expression>;
) r N- c8 \* P* v
" a) R% X% U) c p8 X" \; i0 c3 a# @9 T
1 C$ B9 U3 O1 t0 h以上为常用的函数！
. x' k" {- y4 {2 V% ]还有很多，如有需要我把资料发到你邮箱里
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