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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
+ m% n6 N; g9 e1 O# ^ if <condition> then
& }: ^- e0 H* G7 J' A: [0 {# n <statement sequence1>;7 i% q t, T- |% P$ L' C4 A
elseif <condition> then \5 v5 ]" p0 O- k
<statement sequence2>;
# U. W! \5 a5 w1 Y4 M else / N9 d( C" e0 B/ o6 g
<statement sequence3>;
' a% R6 ]; x! z/ X% B end;
7 l; P7 \' M$ ?- _$ L5 K+ ?& j如果分支比较多，用：( T4 a3 t' V1 {! i, r
inspect <expression>
3 y6 F1 ~4 k, H4 O- p$ s when <constant_list> then8 X) y- t G! z: h5 x) G
<statement sequence1>;7 r( b; X5 \- p* k. C' c
when <constant_list> then
1 b: i& W; K2 T& M <statement sequence2>;1 d5 Q- x( X* K3 Q2 \6 u; b9 P
...; Z, s, ]2 N9 V! k) q9 C/ o
else d" l. J9 w J) L
<statement sequence3>;
( R% W' i3 z7 M' kend;
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2循环语句
# h4 A7 u' R/ Y0 x% _0 D (1) from <statement sequence1>
4 j7 o/ L9 j) e until <condition> loop' m6 t. P( n# S( ] H. P% x
<statement sequence2>;2 g1 U! R0 h# u/ c, K% H7 X/ q
end;
3 c w( P# n5 y) a. s/ X& X2 x (2) while <condition> loop
" W+ g+ L7 v; I* D; m+ N6 V3 U4 C <statement sequence1>;( u% n" I3 ~7 u7 Q0 r0 r
end;) X5 J6 _& r' Q9 ]" B* _! t/ `; \
(3) repeat / u6 b) ~" S' e
<statement sequence1>;5 J' c9 H* O" t4 p8 h* C. ]
until <condition>;, |' h* g: c( `7 ~5 S
(4) for <condition> to <condition> loop
3 _; Y3 |' B6 n# \' d% G$ o <statement sequence1>;
6 M3 A4 y7 G, @* Q, F0 h5 D next;
7 m5 {1 c+ `- K# d( @+ B7 ?3中断语句# p& Z! F, ~, n7 X4 M
waituntil <condition> prio <integer expression>;8 f% @' x8 a3 l3 x5 c* M
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& L$ F7 Z5 h% N- o6 W% |: I以上为常用的函数！/ g6 I$ e: y' C; g* O
还有很多，如有需要我把资料发到你邮箱里 7 x: p( E! _# r4 P$ V4 w
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+ I9 ~) F9 P' N, Q5 a0 p8 F( C$ ^: }; c8 g4 B& B+ M2 `& g
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