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发表于 2012-11-13 08:48:12
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1判断语句
0 |% d& _5 K( b3 S$ v/ w) t" n if <condition> then
" h" @) ?9 G' h <statement sequence1>;! _- r) x+ Q4 R& a& c; s2 i/ e
elseif <condition> then
6 o3 Q& d' V+ p <statement sequence2>;
- ^3 {$ j7 P9 Y3 u9 _, g else
4 _: `$ e% B3 a3 g* M, C1 O <statement sequence3>;
- s+ |5 w! z6 i1 Y* k' i1 G5 O. [ end;
( X8 y8 ^; H, Y- [" [3 F如果分支比较多，用：
- m- @" m6 A) ? inspect <expression>9 K( D) Y1 f' ]1 w3 i$ Q! R
when <constant_list> then; q" ~- p# @, p! h7 R6 j, _
<statement sequence1>;( C4 N, I; i$ ^
when <constant_list> then: @. X1 Z9 P- I5 M" `+ _
<statement sequence2>;
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else
* a( S' N5 x8 a8 f <statement sequence3>;
6 p, R" [$ J$ P, ~end;% G. a& Z X! |9 S2 Y
+ `) B9 y7 L' [) P3 q2循环语句6 {# i: e! t$ n! P, ~. z: F
(1) from <statement sequence1>3 u% A4 w/ D( {# ]( R" M) E1 R' {
until <condition> loop
! y2 ^' b+ ^. V9 { <statement sequence2>;
' m. W V, R( |6 D end;
! t" }, ]& S) D* I; j/ ?" r8 s (2) while <condition> loop% p k& L, z8 `9 s+ |, W: F
<statement sequence1>;
$ J1 ^/ p. }. f end;; e$ _' G/ M# }3 m0 _! C8 m2 e
(3) repeat
. n6 i* V! i2 U: W1 i B <statement sequence1>;/ f. U1 u% [( @$ m) g
until <condition>;
. ^; \: m( J9 a6 l" y (4) for <condition> to <condition> loop
( D( n- y' r7 y% H% R* r6 C2 v <statement sequence1>;* v1 \7 {" G3 a* m$ S3 d
next;
3 k; y( o, H8 W% q3中断语句
! c p& t' O* v T1 \* h waituntil <condition> prio <integer expression>;) E: T# l: N& s R0 E
# }8 E) r4 N' a j7 r
F7 C+ f2 _3 u. U8 W. Q6 _7 J以上为常用的函数！
% L7 }+ t- K9 {, z) D: J9 H5 }4 q还有很多，如有需要我把资料发到你邮箱里
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