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发表于 2012-11-13 08:48:12
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1判断语句9 y+ ?/ E/ k* u2 u. R+ f+ N, S3 B# K, ?
if <condition> then
9 X* C. Z& d5 W0 e% e <statement sequence1>;- i: [, v' z" o, ?4 { B$ S
elseif <condition> then# y) }1 i6 `/ I$ O4 S; _: @, [
<statement sequence2>;
$ L4 |6 W7 _/ m0 E J else
9 B- p0 Y2 B. {4 | <statement sequence3>;" g4 M1 V" d/ C D: X |
end;% u" s# J( }, t* e0 j
如果分支比较多，用：
& { A- z; n/ e- p inspect <expression>% @) O8 i4 v8 x- q( K% h* N- z1 @5 k
when <constant_list> then
' |9 `: `" N7 n5 N7 a/ Q <statement sequence1>;
9 S6 D: K( O# J) R. w( \ when <constant_list> then
+ I9 p9 v" v3 \1 | <statement sequence2>;
; I/ @" V# T5 e8 Y# v ...
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<statement sequence3>;
8 ]2 r' F @5 H: H$ iend;
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2循环语句- J/ [3 R- @# o
(1) from <statement sequence1>
3 @. u. R1 z5 o) N4 G% k& N until <condition> loop
* \3 _; `2 R) S6 ^& Y3 W <statement sequence2>;
9 F& Y5 e# M2 q) P end;0 e9 Z" ~8 j6 [% d/ h7 M3 w( J, ^8 j
(2) while <condition> loop. g: [, g0 [+ ^* g" N4 ~
<statement sequence1>;
2 h9 g$ ]6 [0 P end;
1 r7 M- }2 w# L' ~( B. _& u (3) repeat
$ u7 J# m- O0 N7 f# s0 \ <statement sequence1>;
$ q) c1 W0 W) _& H$ A until <condition>;4 [9 g0 U6 a/ |1 x" g# K f5 x
(4) for <condition> to <condition> loop" e% h( s9 h* E. j. S F
<statement sequence1>;
6 w$ x' f$ {1 o0 m next;2 G6 J- _: Q0 E7 b( \2 A1 q
3中断语句
( k1 ]% I9 ?- z$ ]7 w waituntil <condition> prio <integer expression>;4 Q6 m% X: }" B* n
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以上为常用的函数！. U% P$ _+ T+ F/ j% q( b
还有很多，如有需要我把资料发到你邮箱里 0 [* v! w" {: M( ^
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