|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
/ W* g, A& t4 M; H8 s* U) a; A% i if <condition> then
6 U; s# H. Y; L$ _- _ <statement sequence1>;% G' ^; K+ |- }/ a( N
elseif <condition> then
! e8 F5 Z' J6 t) W <statement sequence2>;9 W- V' C! I- R% Q! D4 G0 ^+ U
else 0 P* F( k. x; A _' i+ X6 h
<statement sequence3>;
, Q) }; J% z1 f1 \ end;
! _! W* C/ S' \, Q# n如果分支比较多,用:# A2 T2 a! A8 p+ J3 v7 r" O0 x l# W
inspect <expression>
. w8 o3 J. p: C4 l# @& p9 j, G/ Q when <constant_list> then6 Y; p* }8 w6 o) w
<statement sequence1>;
8 q- o, t- q0 L7 x a/ X! R when <constant_list> then
+ l1 }8 X; O. Z% p O% r/ L$ ` <statement sequence2>;
1 L. w5 o1 ]- b4 ], v0 R ...
2 O6 K, g. [, o# H2 T; o K" {# F else7 |8 @7 d6 e$ L- U
<statement sequence3>;
1 k$ u" \; J: k; W) ~5 e N; Nend;& b% U6 y. b* {- H5 S5 v
! s" L. i0 t; ]- ]# o S7 w" I! k2 M
2循环语句* u7 m6 ^+ e1 B) B0 K1 X8 l% L
(1) from <statement sequence1>
- w- F0 T6 N7 l4 J3 w' B until <condition> loop% P( [) }$ O8 P3 I; r9 q# R R
<statement sequence2>;! j9 R, c" q8 p
end;# Y# `3 z, v* m/ [% g. K
(2) while <condition> loop2 E# G0 `5 g, t( F4 z# r
<statement sequence1>;8 g# S9 z0 k* N
end;
2 @* E7 `9 A/ h5 h (3) repeat 0 `5 ^! f7 Q9 r+ @$ q0 M! V; [; W s
<statement sequence1>;
' @, F* a0 K4 L0 a$ Z- u* Y' K until <condition>;
" k. m5 Q4 v: j8 m# k7 H/ A" B (4) for <condition> to <condition> loop
4 X, J& u9 I( A <statement sequence1>;& i# |) s: J& s! k$ T8 z; D
next;# F0 L8 n9 G. s( |! H; @
3中断语句
6 F% m+ Q9 p4 u/ c2 Z0 R5 c waituntil <condition> prio <integer expression>;
3 M. x8 k: s) M; m3 c0 X- T3 G6 E1 C, c' S& N
0 F, H" ^$ k8 W' X" X1 i
以上为常用的函数!- P% B" W5 X& J9 ~$ o. a
还有很多,如有需要我把资料发到你邮箱里 # o% u0 d! B. b; L2 b7 R! W( x
+ l7 C* L0 D: n7 ?7 Q# r
4 Y5 T5 Y8 i1 [6 }) `( Y
9 N7 V" \; u$ j3 r$ e : k" a$ A* L4 d5 G8 O
$ P7 e5 `& R P% w
( w* c' U6 W( | s: _
( g- A5 D& Y8 I& v0 I5 @2 O" j6 U
/ F2 z* N5 U, M( [, ]" g) |4 t! i. \2 N: F& U- W g
. B6 p$ p a+ n( `. U$ e8 k |
|