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发表于 2012-11-13 08:48:12
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1判断语句. C; Y2 p; x. R
if <condition> then) b; D0 ~2 Y/ I1 C+ S3 {+ }3 F) g
<statement sequence1>;
! C/ R; @6 j' H2 B0 ~6 k- o% f elseif <condition> then
* g' I: b" \+ f, p' w+ s( w! k <statement sequence2>; |2 ~, D2 N/ n
else
- O. z, j" Z3 y( t9 w" V5 W <statement sequence3>;, u: D6 B' ^3 L+ g2 a
end;+ [6 s" [. \! H- E9 U3 Y: E2 S
如果分支比较多，用：
2 _/ w+ C1 I2 o" f0 ]' ^9 w' x' q inspect <expression>5 T( p. D4 }! A9 I Q9 A
when <constant_list> then8 b( Q7 f# C4 R8 F& O' p( z
<statement sequence1>;6 O- _ ]( h: f( x/ s1 U
when <constant_list> then
0 F8 l& f: Y7 [" f' Q! q$ C) F <statement sequence2>;' H8 e# O) t W* T4 R% a
...% a7 u2 L0 W/ s. F& f' [
else
O! E. F3 f2 f% | <statement sequence3>; g0 W, r' q3 I' [$ h
end;
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- k. x" ^& \* w2循环语句
0 ~" ]# ^- F" @# c3 |* h (1) from <statement sequence1>; r) Y1 T0 L: j f, O- ?: s4 f
until <condition> loop4 {5 _( d1 u5 ~. t9 t% E1 h% z
<statement sequence2>;1 d0 G- L4 `8 k0 L2 m; S" \
end;
. k: X; E, k& p1 ?% T& F& Q3 U, I* q (2) while <condition> loop
) t' h e5 x5 N7 d <statement sequence1>;! h, C4 j9 U3 d4 N
end;
% A3 b4 [: K3 g. N% \& L% { (3) repeat
- {7 d+ t" i @8 H <statement sequence1>;; l, ]5 }' ]3 r V4 L8 n% q
until <condition>;
7 J- H# R; H5 H9 e& k& j/ Y (4) for <condition> to <condition> loop
# F$ e' C% H4 d0 u# r/ n' M ]& V <statement sequence1>;
9 o7 \+ }7 k* T next;
$ X4 S9 q g, ?3中断语句6 A0 p6 }4 S- ^1 i/ b
waituntil <condition> prio <integer expression>;
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n% j7 L2 p; w6 P" F; J3 q' r# P
以上为常用的函数！
6 w: y' A% K7 s5 m5 Y3 m2 E还有很多，如有需要我把资料发到你邮箱里 $ q1 Z! ?# f! x$ j) g
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