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发表于 2012-11-13 08:48:12
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1判断语句. N; c, x) q' s- O' |
if <condition> then, N0 Z* C2 M5 w% K' J; L+ i
<statement sequence1>;) H& \/ |0 G* Q$ M" ^
elseif <condition> then" v4 d0 m" J1 [6 P$ e# |
<statement sequence2>;
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<statement sequence3>;' g- T+ P- X& k) \4 R: J
end;8 c X, f/ ]5 @5 X( u, V" ~
如果分支比较多，用：( I* c8 i0 j* k' f5 p5 r
inspect <expression>
w% D5 I' F' [+ a) O when <constant_list> then
D) `* _, ~+ x: W <statement sequence1>;
3 _$ z7 [/ U2 K) ?( M- h8 Y when <constant_list> then7 H9 A' W* W/ `( b7 B$ j+ x
<statement sequence2>; f1 p. C5 @7 i! d/ W+ } n, D, m
...
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<statement sequence3>;+ Z1 \* X) t. x
end;
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$ N' }" w5 p- R2 l7 H2循环语句! |0 t. j) ~% \8 L! Y" k
(1) from <statement sequence1>: w! u* c& G+ j) M7 D3 `
until <condition> loop
& n& i( \9 g; j: t8 L <statement sequence2>;! `2 ] q: Y7 o+ @
end;
# [1 J) e+ A9 I" J (2) while <condition> loop2 A4 m3 o+ f8 H# i
<statement sequence1>;
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(3) repeat
5 @0 a* A9 t5 b0 F1 f! \ <statement sequence1>;) j; h% Y* i& X+ z
until <condition>;
$ V( }2 u. |0 a$ S M4 X# z' E (4) for <condition> to <condition> loop. i3 h) a# R3 O* f
<statement sequence1>;# P0 `. F$ U3 a8 K; O9 Q4 z: z
next;" O c& w$ p$ y2 w
3中断语句
8 A1 M% B" S1 t. c. q2 e W waituntil <condition> prio <integer expression>;' v* k/ y* Z! y2 h4 s4 S
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以上为常用的函数！
7 @' ]) F3 _ t1 s( u4 q还有很多，如有需要我把资料发到你邮箱里 1 y! {2 s. O( R! \
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