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发表于 2012-11-13 08:48:12
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1判断语句6 ]+ T4 W* O3 l* T. K% `9 z
if <condition> then- X) o2 Z1 t. i5 }3 O; ]
<statement sequence1>;
+ F3 q0 y" }0 Q3 \: f% b+ {9 O+ M% s+ o elseif <condition> then6 U1 S7 r: x& Q" P
<statement sequence2>;0 U& Z3 J1 D) r; X; i$ f
else
( B& I( J4 C$ A# \ <statement sequence3>;2 }3 h6 J7 a4 t2 [ w6 u
end;
4 I) ~9 Z7 a$ j4 _3 m: y如果分支比较多，用：
3 M7 f% H/ l t& y inspect <expression>
4 L$ g( c, G2 ~( ^( V7 ?- ~/ k1 k when <constant_list> then+ K1 w+ y* D9 I7 m5 g
<statement sequence1>;, W% b$ a) l/ w8 e9 F" X0 x
when <constant_list> then+ ]! |/ g( @* ?+ ~* z
<statement sequence2>;& U. {1 b o) G: E
...$ p/ E0 O3 X( |" x- m% G
else
+ ^3 @3 R z5 P/ t <statement sequence3>;
: H9 e+ s3 r" z. b2 Dend;# S8 S7 B! ]5 b+ \2 J" y# ]
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2循环语句0 {7 m4 O8 n9 p. R* f
(1) from <statement sequence1>) R: m$ y5 k& Q) f: o, A
until <condition> loop, G/ `2 `! T2 M) i/ s
<statement sequence2>;
1 L$ W1 k& i2 k5 v8 y- _ end;
+ H$ u7 }- q8 g: Y (2) while <condition> loop/ l j4 N8 @& L* X( G
<statement sequence1>;
% z, [8 K" X$ }4 p% U5 z end;) c- s/ m. _6 r' g6 g
(3) repeat
N( I8 s5 l6 U/ b9 z0 t5 h <statement sequence1>;% Q; J9 x1 Y8 z8 J2 d
until <condition>;/ @5 ^0 X; F* r5 ]4 m
(4) for <condition> to <condition> loop8 N0 P9 h1 b. D/ `* M& b
<statement sequence1>;
9 e7 j8 u% r+ I next;8 W: R3 F$ B2 m# h3 W: e
3中断语句
' p' u. r9 y+ u' o) O$ h waituntil <condition> prio <integer expression>;
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以上为常用的函数！
; R( l6 H( }/ K8 l7 I- s' @4 p还有很多，如有需要我把资料发到你邮箱里
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