|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句5 E% N2 g6 I/ \( N f
if <condition> then
/ d+ @! W1 T! U( O" d7 u9 W6 X) T <statement sequence1>;
3 t. c& Y, c, F! U m* N elseif <condition> then
1 A: O$ V9 D& X <statement sequence2>;
7 N% e& W$ e7 E7 L+ B else , r& A+ b4 F0 M
<statement sequence3>;- N0 K1 t4 @; p2 E( s) c6 c
end;6 W- q! }0 o9 n1 J- s
如果分支比较多，用：
; w) A7 `' w3 _) u inspect <expression>
" @! t8 i# O" O0 U( y5 z V when <constant_list> then
4 _& f: h W$ u) }1 @1 {# Q4 `1 S, u, T <statement sequence1>;8 y; ^7 W6 \4 e# }, O
when <constant_list> then
7 Y- t, S0 ~8 M& r G( d <statement sequence2>;) p& z; l; r; n
...# f$ R) t. w9 x- r
else; Z- P& ~+ l }! e
<statement sequence3>;
) W x# o% }9 o+ Nend;
2 S9 w. t) W9 u' P, r; G! Q$ O# C5 i* z; A" ]1 w) L4 V
2循环语句 X& ?" c1 z! A' b, j0 U
(1) from <statement sequence1>
5 H5 D6 I( s- a until <condition> loop+ E: y/ s1 i) q* |) T2 `4 ]7 e
<statement sequence2>;
( [# ]% J% v+ B end;1 B, Q3 ]9 i! ?: X/ l
(2) while <condition> loop
' ^6 S' p8 Y* I, H1 |$ a <statement sequence1>;; j5 m6 h6 E8 O8 r
end;- R, j9 f- d% ^5 o# ^
(3) repeat
& A2 }1 \3 o, I; b1 g <statement sequence1>;
0 r1 U0 B( I/ _0 i n9 i until <condition>;
" l& B( S$ ]+ {0 f$ A+ i" f$ ^ ^ (4) for <condition> to <condition> loop
$ g5 L u. ^4 D <statement sequence1>;) g$ ^/ I% W0 s- D
next;" ^! U( K0 w: c& Y
3中断语句
( e" A7 U6 }3 B9 P4 J+ W waituntil <condition> prio <integer expression>;
( v) P, x$ k; p) @$ W2 C
0 q$ b5 d. z% ^9 f. L: i
$ [# h; w+ u3 W! b( d以上为常用的函数！/ b1 E+ {; j4 l$ A" u5 s
还有很多，如有需要我把资料发到你邮箱里 0 B/ a! x2 l" f' O$ [ D5 M/ [3 g3 i5 v
$ \4 A" K+ o. H k: V
) S6 x6 M! C; {) x9 S# Y, Z }5 Q1 ]6 W
0 `, ^# C0 n9 t9 |: z8 T9 @! F! ]2 y
* M$ Z2 ]3 l8 _3 Q' W
2 Q k/ D9 T9 b0 T; V* D
6 [; R6 e8 Q8 u, {
; b4 f) B1 f& L( T/ J/ \
, P2 D# h& P! Y" ~. B% G9 ^& d |
|
[复制链接]
