|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句, X1 f7 K- f2 N( Q. {& ?
if <condition> then
\4 s7 Q5 t# V# p* W0 {+ m <statement sequence1>;& p! V1 S, t5 b7 b/ E/ Z
elseif <condition> then+ `! O, f/ i/ ~
<statement sequence2>;1 j: t6 m1 m/ L' k# p
else 1 }# G- J9 r, H9 w0 v
<statement sequence3>;
6 V' S+ b2 j& m; X( W/ G. C end;
6 b1 d9 V! X( Y' l如果分支比较多，用：" T7 L0 N$ {, r: ~9 V% K- u
inspect <expression>
1 @4 M, z7 L+ f, v5 G4 \ when <constant_list> then
8 Z: ~) H+ u4 j <statement sequence1>;
, c5 y- h7 F. C/ N& ~6 S* m8 c when <constant_list> then3 R4 m& p& m4 k. H1 F
<statement sequence2>;5 W) E8 r& v9 Y4 v. B* T
...- X. B) H9 F& w2 f+ s- y% S
else6 z5 y t1 h' t9 b
<statement sequence3>;! D# `" t: e6 W% j8 p* x8 E
end;
! t7 p( Y) I, q, N! C. t, Q
& S' T! E- |: c% Y2 ^2循环语句# N1 d" p1 H% v! k. B
(1) from <statement sequence1>
8 _. I, T V. r2 F+ H' C until <condition> loop/ Z" c3 X0 P2 B4 a9 @
<statement sequence2>;
. W) |/ W. q7 q8 `6 ^' L end;
1 E* C8 K/ h7 p3 g) Z+ { (2) while <condition> loop
8 N0 t/ o. g* V1 Y4 j <statement sequence1>;
, R+ b3 n% a# I0 G, W9 s6 y% a end;) Y @8 P0 B8 c6 `2 ?
(3) repeat . Q! x T; @5 @( ^5 I3 t
<statement sequence1>;
& u7 P6 M2 S8 `) z8 b until <condition>;
: I! O }; h1 }3 Y& K; E0 k (4) for <condition> to <condition> loop
: E3 o* R# E$ V) x, x <statement sequence1>;4 U/ z+ j- Z& U% e1 F
next;& |+ H1 t5 L: e: m; D7 q& ^' W. w
3中断语句; h0 R( I6 R T9 E. L; u
waituntil <condition> prio <integer expression>;
* s o; p, }+ Y; A/ J2 U
+ I. b+ c# b6 {
+ W- ?8 `1 Y4 C; }4 O4 o. ?以上为常用的函数！
0 R) ?0 ^" r- ?& x还有很多，如有需要我把资料发到你邮箱里 8 L5 A2 P! |$ v" H) N$ _4 c$ j
! k0 k( _$ r& l2 u1 n1 Z
6 J, Y6 [6 S5 N: K7 ?
/ r) ^: k2 w! |2 J
, \8 I8 \5 \2 f U8 l% V, q
( I' m8 ]2 _+ `. M- X" ?, K! z
- `$ B, h; r! h' b
8 Y: d; N4 w$ ]* H _6 z
; X K7 ~& _( l2 n4 V2 h* n, b! p F6 p8 ^
4 W8 t/ z6 X9 M! v- n8 S+ g |
|
[复制链接]
