|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
2 L: O2 @5 C7 `9 x9 Y. m if <condition> then
% ?) B2 M1 {* D" I <statement sequence1>;
& N5 v- @9 F# E9 K" N4 T4 @6 r% _1 a- q3 S elseif <condition> then
3 @" Y! ?$ j" B6 ]% E7 x" j <statement sequence2>;
$ n' b0 q9 M# P1 |8 k! u6 G else 6 S6 j) B1 M9 l
<statement sequence3>;6 `: ]9 U0 L( r& w' i A9 G C
end;
& v' b" e( b& L; _如果分支比较多,用:
2 n' |) ~5 C+ ^0 t inspect <expression>
# B( K, {" U4 k) e. U) Z6 w M when <constant_list> then
, Z! A; c; F! A8 [ <statement sequence1>;
" n5 R1 F9 ?, k7 m; E when <constant_list> then
0 I ^8 w2 G6 e <statement sequence2>;. S: u7 s3 I7 i8 y
...
" K# q) W! C' A3 }; X else+ B( V; W0 O) u; f5 B2 p% |
<statement sequence3>;
* J* T8 V1 ]- X- L) T$ x6 x) pend;
! f5 S5 A, B' G& p
. J# c9 p1 r' K; Y2循环语句+ U+ M/ g' D! a
(1) from <statement sequence1>
" a) ^' `6 _4 R until <condition> loop6 q( \, X7 |3 a8 z5 x& \1 u
<statement sequence2>;& w2 i# `; v7 B$ J' A8 M" c+ k
end;, b. z {* T% f
(2) while <condition> loop
, ^ t, `+ e; H# y <statement sequence1>;# o$ v @1 b7 V1 V; Z* @
end;
: ?1 B! s: U( I8 j. p0 } (3) repeat 3 G; F6 X" ?: N8 |! a; i0 m1 _
<statement sequence1>;
, f% W6 B( W5 t) n until <condition>;
7 {" S$ v/ r8 ?! B2 \9 i( b# {8 w0 U (4) for <condition> to <condition> loop
( `4 ~5 W8 V, A <statement sequence1>;
& z: u0 P. k8 J$ g1 X w next;: E' a: z0 u& j/ H+ F E: j% [) o
3中断语句9 m9 @) d) L; K* L% E+ ?& Q b1 j
waituntil <condition> prio <integer expression>;7 ?2 B2 b) R9 o6 z( p8 U* a
# I& U T! n# v( l
^3 d' q; k, J/ H5 d$ X8 z
以上为常用的函数!
" p1 ]' p5 T+ o V* h还有很多,如有需要我把资料发到你邮箱里
4 N: }. y7 s* R1 t& ^+ s
! ?: x% |- k8 H4 B& \% c+ P9 r+ Z, h
- y. s% R3 h+ w9 u+ g. r ; u+ ~' `8 `, \8 w% P/ C. F# L
' t' Z, n% U D* W% O6 R' s: ]
( F: B; P# K- _5 h8 k* i: o# [! g
% g' k2 V0 x+ a3 c0 j
( N$ t) [+ F+ O9 W. O# u
1 s1 h- I- c5 ?) c4 w |
|