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发表于 2012-11-13 08:48:12
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1判断语句/ {+ Q9 B1 A) k2 N$ ^$ D
if <condition> then. P+ m& a6 O7 }7 x
<statement sequence1>;
, w9 {6 e9 \4 A3 g elseif <condition> then0 P: Z, M. \. C
<statement sequence2>;: ?+ t* w2 Y: f' o O1 u5 p( q
else
0 x- C5 o/ O+ ]' d% q. J. y <statement sequence3>;2 Y( {* c' U, s0 k( y. n
end;1 ?! h, L- M/ q6 o! u* d
如果分支比较多，用：
. I5 B9 J. q: ?( f$ g4 t- q inspect <expression>( S7 F3 @- q6 D4 n5 T: Q3 r0 g
when <constant_list> then4 C$ L9 T1 U. P, {) r
<statement sequence1>;
0 L. T6 U1 s5 T+ I8 V when <constant_list> then
" K6 J( L& Z9 ~9 h. E <statement sequence2>;. L @+ L, D9 F5 r$ r+ f
...- k! Y. U3 n$ _ e4 R9 N
else
; P( ?! A# n# P) P# ^7 c <statement sequence3>;4 q$ K; x; e9 _9 I0 f% k
end;7 w) {- K, C1 I/ ]6 H
: R5 Z4 Z1 X8 m6 Y2循环语句- h1 O/ i9 n R5 _+ e- a5 w
(1) from <statement sequence1>* U. V$ F9 Q4 ]* }2 R# F2 [8 u
until <condition> loop6 \9 o- |- r+ [0 n* y
<statement sequence2>;' p/ D* k& w% x: @
end;2 r0 M, d; _" u5 @
(2) while <condition> loop2 Z6 N! E* q1 n h+ U
<statement sequence1>;) ]9 ^1 l- d' f$ n- h
end;4 b% C' C+ V2 `4 z) x3 ]
(3) repeat
. s/ y R1 E/ a+ L( D/ Q <statement sequence1>;
. ^% g; n: _4 }" Q; z/ ?$ d3 u until <condition>;
2 w1 b/ U" a8 H5 p! N( X6 _ (4) for <condition> to <condition> loop
/ y' j9 W( E6 v, s <statement sequence1>;
( Z: ?3 p' a: N+ h% d7 B* b/ p next;
: y6 g* a' |7 p3 ?, `4 j3 j5 {) u3中断语句
: F' ~$ V5 ^3 s& M t9 g waituntil <condition> prio <integer expression>;) \0 z0 T* m7 W' U/ a
4 V; ?- M9 m1 n
2 ^, W2 }4 E% @9 k3 [以上为常用的函数！
8 g5 F. r, h' Q/ g" ?- p还有很多，如有需要我把资料发到你邮箱里
# \0 r9 s! D& S2 x- E7 V5 e6 h. n: A4 x5 V& }5 i+ Q
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