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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
* G7 V% L: K5 o U' j; g if <condition> then' d9 Z L O) p, P
<statement sequence1>;
3 E9 m' H; k9 ^& a3 f# j elseif <condition> then
4 E7 S* }. a v# { <statement sequence2>;4 L I* ~( W2 Y) ~4 N& ~
else
7 z$ S8 g; _5 O& q2 {1 B# w <statement sequence3>;
: \8 [2 c, ^' B% ]* m0 t+ J end;
! T7 {- z9 `& I: @0 x如果分支比较多，用：. a( G' f) T; s0 I
inspect <expression>7 k) x- G1 }' C8 W, G
when <constant_list> then# ?4 r3 C6 U- ~9 O5 w: Z8 J* A/ g+ b
<statement sequence1>;4 _- h- _7 m) q, {% o8 Z7 Q* i
when <constant_list> then! p9 T# o ^0 _
<statement sequence2>;
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else0 N) \7 D2 ~4 c4 M! B6 E% a
<statement sequence3>;
. @- R9 t4 C0 `, H8 T+ \end;; ^; G) `* q" }. I) J/ |5 v# l
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2循环语句
/ a+ F8 Q' H# z5 X" S (1) from <statement sequence1>
p) g3 U1 e! Z* e; U7 S# D; g until <condition> loop0 d8 O: i& d# m2 |1 J! _
<statement sequence2>;" I W" |' P8 N
end; g$ t" \: ~/ c# R
(2) while <condition> loop
& c2 T8 L3 H# ?$ s! D6 z <statement sequence1>;" G" T( @2 b. R. e, y8 }
end;9 g6 | a @: W1 t9 T
(3) repeat 8 w+ I! d% ?8 Q% R0 T1 B6 ~
<statement sequence1>;# }0 |. U7 H" j7 q
until <condition>;$ k+ Y! ^$ E7 U. X( K
(4) for <condition> to <condition> loop0 @- }. n& l1 M
<statement sequence1>;. R5 H; b: i0 D
next;8 a& l: x- r1 G" F) t1 ] F7 s
3中断语句' W9 T4 Q7 n' C( M# ^
waituntil <condition> prio <integer expression>;5 z6 P! N2 G& I+ R* Y$ p
2 t: x) L! O. ~: q* A% q! B0 E
O: V& k! R( \* ~' V; Z+ ]: l以上为常用的函数！
) z4 H* Z. [( a, k: \( I8 K8 R还有很多，如有需要我把资料发到你邮箱里
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