|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
1 W# O& X6 J: a) Y if <condition> then* h9 A! b {+ X) I
<statement sequence1>;
6 x9 v/ z, y( Z' J! P9 `7 n/ v; K elseif <condition> then" G! ~) k2 K# q8 V1 D% m$ n
<statement sequence2>;
1 x7 E9 M& k% K- N$ U% j5 j else 7 J% |! m# ^ G8 ^7 |
<statement sequence3>;0 K% R. \5 n) l% |! b
end;
6 k2 K* |* c1 o& m如果分支比较多，用：
* s) i- e2 o5 a% }' R inspect <expression>
: a) D* M4 Q. z. f4 r' p/ z when <constant_list> then& ?) C1 T& Y* j a
<statement sequence1>;& c% _5 @) A: v9 f! {4 b$ P
when <constant_list> then& |. z2 I7 R+ O' c8 m$ Z- `. D
<statement sequence2>;1 ?# o% m5 _& R5 q9 ]
...
4 A t h. E( X ?6 f else
8 M( n& r2 i2 `0 }4 q. b; O <statement sequence3>;4 r6 F4 @! r8 w q: g8 B
end;, O1 K+ B& C) j0 H) M
7 s: Z. U) z6 d3 E) Z0 P: N, P$ u
2循环语句+ P! W7 Y0 A W2 d; X9 a
(1) from <statement sequence1>" U! `; F7 H) c3 d* U o/ ~" e& n
until <condition> loop
4 J- }+ r/ h8 S <statement sequence2>;/ O P5 Y5 E2 z& W8 ]1 x
end;4 u, a6 |: \( J
(2) while <condition> loop
* k) j5 t6 m7 C: d, B3 a <statement sequence1>;
/ o+ A" h, r y( P" r% E' M end;
" r" [4 q8 l. f (3) repeat
5 E) c& q# m- L <statement sequence1>;5 e5 L3 @( r0 Y8 k* J
until <condition>;
( Q5 g {0 W9 T5 R7 c0 z (4) for <condition> to <condition> loop
& ?0 C" ], e5 I1 i8 G% ] <statement sequence1>;% K' a7 [" a' E# A) a7 o
next;+ V+ m3 h1 p9 J5 }, R! U
3中断语句' r* F* Q8 q# J4 p3 C
waituntil <condition> prio <integer expression>;
( O' f; ?/ [6 p5 [: e
+ M; W4 B5 ~) ^4 {2 e* ~5 _
/ w$ A4 ~* A" r' d0 ~' e! O4 T以上为常用的函数！- {/ ?: T; }4 K; x& P8 f
还有很多，如有需要我把资料发到你邮箱里
# {5 l. K# @# t' k( [# u/ } z5 X8 @$ U1 _' K; W
, A9 q8 E& b1 L# S7 @0 D% w( A0 ^
; b( A& c! S* V' i6 g$ d2 t0 G
5 M2 K, j/ l( u8 A# u6 L
2 a$ K* c+ w9 o
8 X7 Y0 A) c8 d# ?, M' u
; Q! z0 Y: E( J7 [# @
/ F; K) \9 {) R6 z
$ l# X$ D5 T; h0 P: V$ d( M# e/ Z 4 A# B. \1 a" _
|
|
[复制链接]
