|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
9 r5 ^' B" S, ^ if <condition> then, N! S3 z) d/ [6 V+ V) P- n1 f
<statement sequence1>;
* w. _- r/ F& G8 Z: O/ l elseif <condition> then
( V5 e) Q( F; N <statement sequence2>;+ P, X: }/ h/ \, @7 p
else 8 b0 w$ g* T# ^/ A# N' ? \- n0 X& L$ V2 M
<statement sequence3>;. y! k, A- q- `0 U3 C; i: D$ @' w
end;! X* n. w8 p5 V9 r [2 _
如果分支比较多，用：
: C: X9 K, ^1 m5 a3 S inspect <expression>
E5 ]5 N( C( t- T ` when <constant_list> then
" h7 O5 w1 [( U/ T. X) Z <statement sequence1>;
J' m5 D0 T, E; Z1 K% u& O5 U when <constant_list> then2 [$ S- T9 B9 n3 t, C T
<statement sequence2>;; i# q; O7 f( R+ g! ? q
.../ }3 T0 l" p- \6 _. C5 f3 C' Q6 X
else, B$ ^. W3 f. S8 E
<statement sequence3>;+ P E' o( W* A! a# v8 c
end; A% {. Q# ^4 b. x+ [' a
; l/ T0 k: l7 M! v, y& Q2循环语句3 O, E: y* d/ I, C
(1) from <statement sequence1>$ z8 m( B, y6 S, V" P- ?
until <condition> loop. A$ T! O o+ C" ?
<statement sequence2>;9 a9 D# f. b/ I; j. m
end;* I. u4 t6 z+ O0 h/ Q
(2) while <condition> loop
7 b8 |2 M7 a- x; c) B9 T" v- Q <statement sequence1>;
: O9 T9 J6 H. K7 ? end;. ]7 V5 b; z: P+ x9 L1 |+ R: @/ m
(3) repeat
6 z- y: X) N! `! f1 n% Q& c <statement sequence1>;) o7 Y( W" c4 ]0 O1 M6 k( D! f, H7 e
until <condition>;
0 s% t c2 F |# V (4) for <condition> to <condition> loop
5 N+ X, |! _# O9 _1 Y) P <statement sequence1>;5 A3 ]5 g3 j* J' R+ e$ @
next;4 L; S* K" |) t/ Y* _
3中断语句
5 [! C6 W N, v) J$ o) ` waituntil <condition> prio <integer expression>;
# u/ [. Y( c' Z0 N* ^ Z6 j3 M4 g7 U, c1 n' r. R" K t. y
4 u2 ]" Z8 t; j; t5 \以上为常用的函数！8 t% X. q% u3 h! [& ]8 o; r
还有很多，如有需要我把资料发到你邮箱里
% s9 n9 ^" V/ d$ b
- q: L! l T4 ~4 J% U H5 Y# N3 G6 K9 i a3 }
: @+ G# A: K+ V: P- S7 }
/ i- d6 _# O" C0 j* L ]
: J$ l( n& T j( O3 J$ y0 E# w& T
; N1 k j { p9 {7 {% h4 \! o5 ~
$ i/ V* X5 ]8 f# M [" f0 Z8 F u# J4 |
# t. H# d/ B* ]- ~) ?
|
|
[复制链接]
