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发表于 2012-11-13 08:48:12
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1判断语句2 h; f! z. d F* D$ u
if <condition> then0 h, q) d8 s8 K% P
<statement sequence1>;
/ V5 q' x. k$ z elseif <condition> then' U: N9 v' Y- B' [5 } q
<statement sequence2>;
8 Z J( [: a9 [+ I, h& t- D- F$ c else
8 s5 }4 b6 t4 p <statement sequence3>;$ E7 `1 g) X0 g
end;$ I m- z. q1 m9 N, O; S! [5 L
如果分支比较多，用：
7 X+ A3 L# i" X- p inspect <expression>& S+ k! T6 f# p4 S" W7 Z$ H* {
when <constant_list> then
" H, `% I L' U |/ x! U W <statement sequence1>;
. M5 h" k: s# [/ J1 [ when <constant_list> then
& _. J$ U8 E/ u5 G7 p) L <statement sequence2>;) s2 y, ^& I7 F. ?
...
' j" b3 r) U8 N3 l2 O9 [ else# U4 R1 a+ i( q% i, j6 v* \
<statement sequence3>;
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: A# o8 e! \- K- j9 T. d2循环语句
- [8 O6 D1 @; e: E& a (1) from <statement sequence1>
; s/ K! g! E1 O+ S until <condition> loop
! v) y. a$ q" I: R7 K$ \/ W <statement sequence2>;
B$ p# r0 n" `' w7 h# j end;
9 f7 s/ x" Z& k: y9 k% Z, F (2) while <condition> loop) ?$ i& W! c6 h8 _
<statement sequence1>;! G# S- z: u5 c! ^2 N3 e# f) K9 I) i
end;
$ `. O; [3 ]' c* D (3) repeat 8 j0 [8 i2 f% u; s6 C- t
<statement sequence1>;' _( C4 ^+ N7 o% y A
until <condition>;9 s5 t+ m6 W9 \: b9 F3 ]
(4) for <condition> to <condition> loop
* a, O1 Q0 \7 i: R <statement sequence1>;
) l! x* y0 n: y+ c b6 U5 W next;5 k- s4 e' `" u6 Z. U
3中断语句( C0 l, a1 n1 [/ E7 V2 u8 F2 q1 A
waituntil <condition> prio <integer expression>;
% v% U1 R/ D' D0 ]/ j6 n: Z& Q0 u. p9 T* `* O
) x. l( H! l6 E以上为常用的函数！
% |4 Z: g7 F- ~' G2 u; u还有很多，如有需要我把资料发到你邮箱里
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