|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
0 w; ?# j6 n% S D- R7 M) h) l if <condition> then
* ^% V) e5 I/ m2 H3 Q) _0 {) O <statement sequence1>;* X9 L6 S4 Z; Z6 }, i+ l
elseif <condition> then
* s4 k9 f/ f* [" K <statement sequence2>;& G: C& I; M8 q# E- ?3 f$ I% h
else / }' A2 |+ _- `
<statement sequence3>;/ M" n+ f* Q1 C1 ^
end;7 j1 T* J6 f) D! y
如果分支比较多，用：
5 |) K) j" c" u* s inspect <expression>
- S/ N5 c: m, d+ j& z when <constant_list> then7 Z5 s; X6 S ^
<statement sequence1>;
; ?! \7 n# O+ `1 C2 ` when <constant_list> then- h% H# k' i' G: C2 W
<statement sequence2>;6 j/ \$ G4 E# r
...5 f+ y9 B- J [; y7 z
else
5 o' B. p4 ]! Z, n, t1 X <statement sequence3>;
" N$ `% [5 a/ X2 yend;5 a& M7 C2 b, g0 |/ C
3 {% ~" n0 J1 w# @; b& J. b2循环语句7 e$ X& u1 b' Y" D8 T+ m
(1) from <statement sequence1>
1 a1 m! f( R7 B until <condition> loop
0 P. x0 Y) r, j* _- O <statement sequence2>;2 @1 ?' T2 | _. m: K \
end;& X4 d! }: q1 m! c! F+ f' Z
(2) while <condition> loop
' V3 |: a# n% u4 L <statement sequence1>;
0 M/ G j, D8 y" x7 E- v! y7 r end;* x: n# i- t: v: N8 C: _
(3) repeat 9 R8 E/ k) K: q( h4 T& N! d
<statement sequence1>;& P4 l# \( T) M" `* b9 f! Y2 K
until <condition>;3 ~; Z9 Z+ p* p2 L
(4) for <condition> to <condition> loop( O( ]2 T5 M! E$ D& q
<statement sequence1>;
. t& K2 c5 s: F# x) S0 M! a* t) y next;
& \: |; q* T" \9 d- e: W- c+ S& T' g3中断语句
) ^! n& N2 @: V waituntil <condition> prio <integer expression>;1 y, F) H3 U' j4 L
5 x3 m5 b+ Q3 s! t/ O7 u
7 ]; r/ \4 u$ K! a1 G以上为常用的函数！
8 v6 u. p. P! V* u/ c& Z$ r4 n- m还有很多，如有需要我把资料发到你邮箱里 W: U& x, o* x4 ^. d. w
/ c1 ?# e9 z* ]: ]# g- J8 L e0 O7 w2 _' ]* u6 x+ o
9 I3 j1 e; L W
* {; y5 o( L. X+ `) X
7 W$ b4 @( d6 ?! o1 u
9 r& B8 A6 }2 I1 \+ Y, H7 x1 W' C
! Y. S5 I r0 N$ d, ?2 M
+ h A0 K1 h+ y' Z: A9 I, C- ^. N; u: ~$ u
9 f4 x0 c* {1 i6 y7 d( L7 Q
|
|
[复制链接]
