|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
5 {6 u+ J) j: ?/ O) z if <condition> then; N; Q$ Q, A; j& D. \
<statement sequence1>;0 @2 o$ K# K. s" ^# m N( |& F
elseif <condition> then
( @/ q3 x+ f4 J/ g <statement sequence2>;: W P% f" t6 W A) \% c
else ! n6 j. j8 C9 a+ A$ e) h
<statement sequence3>;' \! s0 f; m+ G# ]
end;
% h' a7 C# L5 E如果分支比较多，用：1 a$ F4 ^3 y$ i
inspect <expression>
' v" ?- _! C9 j! n" m3 w7 U when <constant_list> then/ ~/ S' h p6 T
<statement sequence1>;
% m4 x1 p$ n z" R, Z when <constant_list> then# p2 k" B. b3 f5 l, U
<statement sequence2>;/ S# S1 L) c- Z0 o u9 C
...6 k; N; w: L& q4 R% P" w
else3 P0 e& Q- `8 i) N! ~0 T# ?' A- }
<statement sequence3>;
/ [8 R2 a2 w) p( a' ^$ ]' {( Eend;2 x( Z2 y/ a/ f; m, e% L- ~. h
/ O8 `$ q, o- y! Q+ x4 e( X0 _1 w2循环语句
' Z" j9 t8 t) J8 i/ X9 N4 Y: Z (1) from <statement sequence1>; x: K# q+ a9 B# V3 A
until <condition> loop
! w* k" G7 H' S3 t0 R <statement sequence2>;' C, M5 D6 y6 }$ ^1 |# o. _' M c
end;2 d$ T% o9 b' Z0 M# T9 E3 ^
(2) while <condition> loop- T" T& z7 o3 y. m9 q; m6 S
<statement sequence1>;
2 t" i# [) b# U2 f, h end;
5 ]! r; z% @6 i/ V% Q9 S (3) repeat 1 N9 b5 W+ o2 D1 ]' S" f9 e
<statement sequence1>;
6 ?" t8 J* Z" V& ~8 |1 k until <condition>;! x y6 {: E8 Z" `7 f
(4) for <condition> to <condition> loop' x& ~4 j' h" E( R7 f+ @3 h& n
<statement sequence1>;8 H/ X1 M2 l1 F1 R8 i' C1 v
next;
2 W5 Z# b) J/ S! A4 L0 V3中断语句
& R% R- \/ c9 S. |* r% B) Z ? waituntil <condition> prio <integer expression>;# j% q$ Z8 ~& K. F; K: u' d
% p* p: j+ C, d5 \# F
* c+ n: n% K, V以上为常用的函数！
# m7 ^' A7 n% @6 U% j- l还有很多，如有需要我把资料发到你邮箱里 - `* B( Z9 R! P4 t6 m' A- d. ?
) x4 T. ]- i7 y; m- ]8 n- {
, a0 A( o6 a3 B0 F/ X% ^, R7 A8 M' t, S! l$ l
1 {. P. m" \) r1 l
8 r9 Y, q4 D& @1 d9 I& b% J
% V# J& W: S3 K; z9 v1 B9 [! G6 \$ i8 m5 `; h
+ h" H# g! T& n( u3 O, V5 w
2 J! U$ }7 ~4 p5 Q/ n
8 a$ `- S( J& C
|
|
[复制链接]
