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发表于 2012-11-13 08:48:12
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1判断语句; o9 ?0 k: V6 \; [) W
if <condition> then
' Q9 Z. j9 O9 b. { <statement sequence1>;
& Y4 o" z" Y: k5 @, W, B0 l elseif <condition> then: j0 L3 X: {" ?; M
<statement sequence2>;4 q! u. p! d+ j
else
. ^$ K% N% p" K% \ ~4 F <statement sequence3>;
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如果分支比较多，用：; [4 \7 O. H3 o& F
inspect <expression>
9 O$ U# r( D" d. ~. N& o: `" o when <constant_list> then
& Y' B0 S T3 ]% Y9 ^ <statement sequence1>;
9 N! X& I s% Q% f% ?2 c3 V when <constant_list> then6 S. c6 g; x3 r% l( ?& E1 o$ f+ H
<statement sequence2>;6 o, h7 O5 V1 Q( }0 D, k
...
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<statement sequence3>;
6 x* t8 r; Z* N$ A9 Tend;
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6 d% r; G( w1 u! f \ B' K2循环语句0 \5 Y4 }7 B8 y$ V3 \! Y
(1) from <statement sequence1>
6 z' }( Y0 M( H- z until <condition> loop& _$ j; G7 d( L; n! S& X
<statement sequence2>;" r0 P- M+ N# M" z$ L
end;: h3 V, f$ {2 d( }. R7 Z
(2) while <condition> loop
* I) _; I; F' q/ Y <statement sequence1>;2 k' v4 j# J j6 J' Q7 Z
end;# A! T; m# w* e7 A
(3) repeat
8 C+ t0 z: u: ~9 c <statement sequence1>;
+ N* [/ E4 T4 N( E until <condition>;
6 ?: x: V% ?7 u (4) for <condition> to <condition> loop; P( E( b' b4 t& v; R- ^7 G( w
<statement sequence1>;+ t X1 B% c. n. Y+ N
next;
; x m/ Q/ ~+ H. V, d& @, H+ s3中断语句# y: A. t1 @7 g! m I, s; v
waituntil <condition> prio <integer expression>;
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% [9 B3 p% T! V2 w. p; j* I9 \以上为常用的函数！
- K% k+ w M& {还有很多，如有需要我把资料发到你邮箱里 ( W! y" x. m* z1 E) O+ R* `) j: d C
+ I, y0 d4 h$ U9 L$ ^& o' Q" Q7 |7 c1 W' C8 X; B/ P& ^
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