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发表于 2012-11-13 08:48:12
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1判断语句
# P) ]( p' E3 o3 Z, A9 p0 ?* H if <condition> then
. M0 q! Q, g4 L( r1 u$ ?3 k$ _ <statement sequence1>;; }+ @0 ~+ `4 b w% F2 w/ b
elseif <condition> then
2 ]/ @' h6 d. x: \ <statement sequence2>;
" P# F4 T# y7 ]) X$ l+ q0 i else 6 z5 ?' u6 G; s' n
<statement sequence3>;
3 S9 W5 C" w9 [" j4 f end;' j7 G8 o1 b. K# a* H- p/ {
如果分支比较多，用：
" {0 G5 A2 U/ G6 \8 i4 j inspect <expression>, t9 a( E) M4 V
when <constant_list> then
! S( P! r; B0 [) U9 F <statement sequence1>;, b$ d- g8 v- o" D
when <constant_list> then
) P8 n+ j: P. h ~' F' K- `6 h <statement sequence2>;
8 T+ y) x% _' k: v- x( f: ] ...9 W& ?) r% h2 U8 m3 ~
else
. S2 x) k) ~" W6 B* m) J5 X <statement sequence3>;3 H6 O2 l% ~( ` ?+ W* [, A
end;
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2 \! i5 z" ` c9 P2循环语句: g) C1 B- x7 }; [
(1) from <statement sequence1>
% q1 y0 P+ J4 V until <condition> loop
( Z: O4 v( i# Y, z) m @ S6 w <statement sequence2>;
0 v2 j- P% d, |9 M( O end;
4 \, H; M6 Y1 q9 k+ p$ Q (2) while <condition> loop
, M! ]/ A# V" l( J- h <statement sequence1>;* e# W) d3 Q; ~) W7 f
end;
2 L; o& P4 C. `+ l& t (3) repeat
) Y1 p+ F! D0 ?3 B6 R <statement sequence1>;
, k' ]$ D+ ?$ p6 N+ _* n- B until <condition>;
9 Q' p1 Z5 X# I9 I+ {0 r3 M" X (4) for <condition> to <condition> loop0 B9 z6 t4 x O0 ^, X, _4 |; s
<statement sequence1>;: x- ~- ^# I' z' L3 ~
next;
2 Q) t, V% Y5 O2 |0 @' F3中断语句
q4 ]( O1 B6 ? waituntil <condition> prio <integer expression>;6 {$ J0 N- D; ]8 h
$ V' C1 ] o* S
|8 c9 r% \* o1 D以上为常用的函数！
7 _3 o9 g' C0 I7 h, k还有很多，如有需要我把资料发到你邮箱里 0 W; i' E: ^: R* ~
* ^9 O+ h7 T5 h. J1 z7 ~, c& T& b6 l, ~8 O7 c
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) F4 r4 g7 b" N' }; V$ h! B! w I
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