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发表于 2012-11-13 08:48:12
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1判断语句
& j$ ]) q4 I$ K" ~: J if <condition> then5 f7 U* `; `' p) G X' z* r
<statement sequence1>;
; z$ J; b4 e. `" Q. l( u elseif <condition> then
3 |6 h6 n1 j4 s, {: Y <statement sequence2>;
5 g! v9 T1 X' {- s! [; t7 Z else
- D2 M ~0 C2 E# S <statement sequence3>;
3 W( A$ r1 B* z. T% ^9 B' u* Y6 ^" o end;
. j$ N6 h/ c, I; M5 y, g" _如果分支比较多，用：2 K, e. }" q2 s6 D( P0 A
inspect <expression>0 [2 H3 ^% v. T
when <constant_list> then
! A1 N; c7 J) f( t% Z! l: I <statement sequence1>;
9 ]# h5 p9 m" T when <constant_list> then
* R/ S7 r9 O5 n" q <statement sequence2>;
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else
f8 C' V, L% z$ t. j7 ?& Z: Y2 T <statement sequence3>;
6 d9 E6 y- Q- t/ Kend;
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2循环语句+ v0 D5 h3 W+ d' R7 ?
(1) from <statement sequence1>! i! }5 u1 p4 @) T# \' @/ S
until <condition> loop7 L7 ~' o' o Q4 r3 y) t% U* i
<statement sequence2>;
2 o, k6 w5 Y% ] end;
& ?- @: C- j/ Z. Y3 q3 e (2) while <condition> loop
! {; T* I' u9 G/ F <statement sequence1>;$ m' M: P) G7 Q5 e6 H+ d! [$ Q0 I7 E) a
end;, X- u( l' i* M1 W8 N/ f
(3) repeat
1 b. e' u9 I8 F8 K# y9 |' j) q <statement sequence1>;# c7 `5 ~. G% Z
until <condition>;
; @, Z% d( m, F( ] (4) for <condition> to <condition> loop
( B( \, Y0 J- a: `0 T! N" L <statement sequence1>;
# i% r4 E! X* R5 m+ T; w0 d0 k/ I+ x next;& b* m" m! T/ X" O3 p5 Z
3中断语句
: \$ P* t4 x0 ~ waituntil <condition> prio <integer expression>;
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0 W' h- h3 q3 T, c# ^* ^以上为常用的函数！
~- C! G4 I) G还有很多，如有需要我把资料发到你邮箱里 3 B$ M, a' h8 ?" f* O+ g
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