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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
( O, o; F/ O" a4 B" b# O if <condition> then
* ?( r) S3 \+ L+ C9 ^: ^( H/ P7 U3 J <statement sequence1>;( ~+ Q' k6 X1 b: f$ S
elseif <condition> then1 f, {0 X( Z, B0 ]$ F/ X
<statement sequence2>;( {5 r, N! f4 [1 n; F) P2 d1 e1 |
else
- C5 }7 U7 p9 n# @ <statement sequence3>;/ [8 X+ A' ]- `& Z3 M% l
end;5 K, W2 K( E. S6 a
如果分支比较多，用：
' h" P- t8 v7 G a/ F) ~ inspect <expression>
& k' G) O2 `# I5 T) N' @ when <constant_list> then
. Q3 }6 p3 z/ v* w- N* @ M0 Q <statement sequence1>;1 j' S! `2 T( v0 l% D7 p' I
when <constant_list> then
/ a3 ]5 r# N9 r1 } <statement sequence2>;: \( Q, ^2 w4 E: }0 Z
...# R8 Y3 }1 I' [8 E
else
: l7 v( X7 {2 l$ p$ [+ E+ L <statement sequence3>;' r0 [: s, D! I( _8 _! [1 A
end;: ~2 ^( [+ F N3 b+ d$ Q8 W
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2循环语句6 d0 {+ O9 |% f' y- J* \9 d
(1) from <statement sequence1>/ W3 Q( c0 ~, ?& D# ^3 |1 i8 e
until <condition> loop0 T2 p+ I: q# V9 r n( |! e9 D
<statement sequence2>;5 p- b: G' i# C, |9 Z# z( z
end;% g& g; o0 j/ I* f
(2) while <condition> loop
; G' m1 C9 @/ E( O8 |* o <statement sequence1>;
! n8 K; w4 M" u9 k end;
. r1 }( a1 k5 @! z8 z( U (3) repeat
4 ~# w: ~9 T8 I, P <statement sequence1>;
$ o4 T1 U9 F' T2 `0 k, E3 l until <condition>;
" z6 e t8 y) B f: }: y (4) for <condition> to <condition> loop g; u- M/ T- Y$ W' g
<statement sequence1>;7 L0 r. G+ j; r9 u ^
next;
8 j& B& l3 [! e1 e; ]3中断语句, ~4 J" o+ t+ L6 h0 t) b
waituntil <condition> prio <integer expression>;0 f* e1 K" j$ v, q8 O' u6 ~, R
7 P2 Q9 F" p1 A6 l& E! V
$ i+ F; m @4 z _2 L以上为常用的函数！: P3 J) l- l5 ]; e& C8 H
还有很多，如有需要我把资料发到你邮箱里 , c6 ~- W. b3 O$ |8 F8 |7 S
+ T8 O/ F5 Y- ~9 @- g" {
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g0 O/ ~, |4 @! \$ F' Q3 J, w
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