|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句: T1 d" l' _( j
if <condition> then
2 d8 n2 x C2 J3 Z! C <statement sequence1>;
$ {& t4 d" V# h# X8 p: m elseif <condition> then
8 C# _9 d; N$ {& O <statement sequence2>;4 q! x; w. D7 E$ ^9 r9 r. s
else , h- S0 c5 Q p7 C/ Q
<statement sequence3>;
8 Z- G6 O' c: W+ K% w end;7 u5 ^2 a" h, l
如果分支比较多，用：4 ^1 P0 h( H4 b1 h# U- u
inspect <expression>
; X U2 i; _! j- ~1 @3 T( M when <constant_list> then* M$ g7 h+ P: _
<statement sequence1>;( B- P' B' b' }, _9 u
when <constant_list> then
/ W8 e! ~+ ~& P9 j <statement sequence2>;
6 p4 |% i3 ]0 A) o N9 x0 h' }" R! N ...
* R1 h, {8 {% e/ x1 }/ K; @ else
- i% d0 `+ r8 i C' Y <statement sequence3>;
% e. F. q- A! M1 ~1 c! ^; ~end;9 `9 r( q/ Q! e
) X7 S$ H$ g6 U5 A* `5 k' K+ z
2循环语句# d! m. f. H) W; ~. L
(1) from <statement sequence1>
+ A6 |) Z, u A9 D! t" ^ until <condition> loop
$ l/ C& r" C0 H! c <statement sequence2>;" F' H) @( D0 q% U6 T
end;; S2 Q+ f/ v1 u( ^
(2) while <condition> loop
/ u5 G# R& P8 K) X! | <statement sequence1>;
) p/ L' _7 u' n! H* q6 z8 [$ F6 C( v8 G end;
. j1 {& B) o( G" U! u (3) repeat
' D" Y4 n3 w5 \/ S4 f8 C1 A( z <statement sequence1>;
" d0 p& W. B( @; Y# b+ L" h until <condition>;! R# H) C; Z1 y! y- X& B" ^8 t0 |& r
(4) for <condition> to <condition> loop9 [0 `* {7 m* d( P8 W# X9 k! H
<statement sequence1>;% x0 B6 t2 |2 {+ F- {4 t& R9 O
next;& z9 M) |$ ?: o& d% i: t% A
3中断语句
2 ?( Z0 e; w8 O { waituntil <condition> prio <integer expression>;
/ ~5 `9 g, I- s/ x, ?$ e8 l
& D' a/ o( A- Y4 O2 p
( I# T, @$ C3 e/ L! }以上为常用的函数！
* A. ^# G7 l0 ]$ y& N还有很多，如有需要我把资料发到你邮箱里
% X: N% s V, H# f) {6 C; f% D
# ]+ [0 @ ]% e
: O2 O- A) r( R# @% n& M/ }: r8 }0 ?& J4 e! L5 A
+ K$ B! T! [% w+ M* ?) N4 ~
! o! M" e3 F+ p, o4 t( I. |7 [3 B1 T8 e$ e2 u% _
1 i4 A5 F7 c- P0 I9 Q; L. t/ w
$ N6 z! F% ~- H
: i4 |. O! [* C 1 L" K$ j! r4 { f$ s1 f
|
|
[复制链接]
