|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句+ G u! L X k, z* {, i" ^7 J, |
if <condition> then; A( T3 s0 H9 z7 |
<statement sequence1>; m' d7 \" N( k. ^' X$ F
elseif <condition> then
2 a) \! U) Y1 Z) D% }8 K <statement sequence2>;
. H! A; X, t$ @* t' p1 c else
7 I3 q. C8 C9 v3 J3 ? <statement sequence3>;9 Z; p2 L& E0 F
end;7 f% F, b3 M! f7 N$ a8 r
如果分支比较多,用:
0 W8 v+ E# V9 l' n4 Y- C& C inspect <expression> ~- Z# w% p- R1 H, c; p, O
when <constant_list> then
% D% M1 p5 E* M- _# t& [$ { <statement sequence1>;
5 _4 f) z( m- a1 S/ a5 h when <constant_list> then7 e( F* s7 F; N. r
<statement sequence2>;
2 M* q; q5 D1 s% E ...# \) s9 y! E/ X
else3 T( g# h0 K: U% [( H
<statement sequence3>;
6 v% K2 e! _7 h0 n1 J8 V2 Pend;" b$ G8 ^; f) ~( I! G1 J+ S1 h
+ j- |; m( F$ D4 S
2循环语句
& {4 B1 a3 ]: \' j (1) from <statement sequence1>3 O1 L1 ]9 p7 x; a- n
until <condition> loop) r+ v! T1 D" T. h9 }. q# ]8 q3 x
<statement sequence2>;
. R- ^! y: |4 j& ` end;! x1 ~: U' ~9 e# z! |
(2) while <condition> loop
, u4 T/ Y C2 H8 M7 X <statement sequence1>;+ D: ~2 Y* t$ {/ `+ ~2 |3 K9 I, ^
end;
+ R" X& Z+ h% `& y (3) repeat
+ j% j5 k) W1 z% |- f" T. p/ c <statement sequence1>;( n _/ w+ \* j- ~) d2 Q
until <condition>;
3 ~ ~% ?2 Y; f9 ?8 [; j (4) for <condition> to <condition> loop
; r, D" D" T3 k5 j" E" Q% D <statement sequence1>;7 V1 f& Q% ^) O2 z+ ]1 S- i
next;* Q9 q# w6 z; v! i
3中断语句, d# T8 s# _+ w3 @ @7 m
waituntil <condition> prio <integer expression>;. h) m/ T& u/ a( p6 I
, d! |' v6 \* R6 f8 p: w
+ ^0 V9 Y: H' E# Q, f
以上为常用的函数!
! B3 o6 A% l! m$ j8 }3 c( K还有很多,如有需要我把资料发到你邮箱里 7 n9 ?! a7 N4 _$ I: z
0 p6 y' O( U" R+ o- R: z
# ]) w4 u/ V; y: {
- p* D0 F1 O2 h# N4 c3 ^' M# { ( N+ m0 n5 f. |6 W& @
4 U$ n5 g( W6 t* k4 w$ D' ]/ F
; t" V* p \* J; q( v, {3 G9 h( Q) ]# |
6 \# D; h X8 H/ X- ?4 ?
d5 b; S3 w& ^8 Q
8 z9 Y% U, j1 @$ l; K
|
|