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发表于 2012-11-13 08:48:12
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1判断语句+ ^( _( W/ P7 w9 s M! J
if <condition> then8 ~) d7 m N1 @' X9 Q8 r
<statement sequence1>;
- R" ~2 K: z; y5 z8 w5 ~ elseif <condition> then
% s& T/ N3 v: n2 M N! E2 Z5 m* H <statement sequence2>;0 Z7 O. Z. ^8 R, N- y
else : H8 }, a# y/ [& J" Y' ?3 B
<statement sequence3>;" S4 m; T' _6 |+ e
end;$ k0 h" c' H8 D. l( X
如果分支比较多，用：
% ^5 `. u% Y5 p inspect <expression>
# }- J5 K g% V) S when <constant_list> then
4 p: t$ N" b% C5 Y <statement sequence1>;
$ n/ A# V# g! N when <constant_list> then- i7 A& x- B8 O6 p/ r8 }
<statement sequence2>;; `$ ~) z3 f3 }
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else0 E) u4 J! j k2 r4 K/ W) L
<statement sequence3>;
% y" u! ]! d1 V0 I/ Y/ O: J. o9 kend;8 @: _ Y6 a0 S! t2 w
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2循环语句
* a: j0 x4 W4 S0 b6 E: ^ (1) from <statement sequence1>! O; N3 a1 x* }
until <condition> loop
% E# h. p- u2 O% l. h9 l) [ <statement sequence2>;2 r" }- k1 a( p
end;
7 ~4 L7 }- c7 Y4 n+ ^9 e (2) while <condition> loop
0 V1 Y) v* A* K7 r+ X1 Q <statement sequence1>;$ F2 Z( ?5 A3 u, Z0 b$ L# U t
end;) |& d e2 f) F1 E
(3) repeat 8 z' t- C1 w, ^6 z ~, k( t
<statement sequence1>;, ?" P7 P2 ^, ~! R+ B. \. [
until <condition>;9 W# h# u0 r" }1 @! _9 }+ o
(4) for <condition> to <condition> loop2 r& {( H- U6 X8 P% W$ t
<statement sequence1>;
9 `6 {6 u1 e0 x- O4 @+ | next;- }. a! ^* { b# X/ t$ ?* h4 V/ }
3中断语句
- M7 V; b) T) f ?3 f+ `" W waituntil <condition> prio <integer expression>;
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以上为常用的函数！
2 J3 F) E1 G- r6 w; [' |1 S还有很多，如有需要我把资料发到你邮箱里
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