|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
) i) `. `6 v1 S if <condition> then
' N# ^- Q; l8 p# T+ S- {) E C2 g <statement sequence1>;
) a* E6 n5 ~9 ~5 a' W7 C5 X3 j" n elseif <condition> then! X9 ?2 r( F6 K' R
<statement sequence2>;
% q7 J! z" g8 k5 F else - f. B$ @. ]7 c9 s) d/ Z# V
<statement sequence3>;8 _" u& O( Y! c- }5 \& o
end;2 y( Z* V j) O1 \1 A: G: v# j6 P
如果分支比较多，用：
, d0 s; t4 _* i) L inspect <expression>
1 }! B1 [& }0 W4 ]/ c2 r0 W0 x when <constant_list> then; x2 v+ @5 }+ p: A2 s( |
<statement sequence1>;
5 a& V) ]6 O& w7 L) D6 N, l) Z8 N$ d when <constant_list> then
; m! p! P+ N! U9 c, A <statement sequence2>;% {/ ~6 X8 L& T# @" N
...
4 M+ c* ?; c" ~ else9 k* i/ x7 G- f
<statement sequence3>;
* X& \/ y8 f2 T3 \6 _$ pend;! F7 j% S/ H& f/ }' W* n
3 L6 t1 m: D1 I- d, S9 H2 ?" }6 ^2循环语句, J, i' h+ t( s7 l/ B$ }' F- O+ _
(1) from <statement sequence1>
9 d5 w; H5 z4 U6 f; J until <condition> loop6 N5 ]; f* O7 {7 G' H
<statement sequence2>;
1 e' ?: W' @" [" D' q5 g$ h, F9 B* ? end;& X" B2 i! f. v+ \2 o& c. i8 L H
(2) while <condition> loop
7 ^( Z. T& h* i, T( W, ` <statement sequence1>;
* o8 ^8 m) ]) ^( b6 [$ W end;1 L6 Y# [' T8 h( E
(3) repeat
3 C) S( h( `$ r% Q <statement sequence1>;
5 @0 o; b' j& [3 U% K9 p" z$ g0 z until <condition>;) Z9 A0 }" b* u) v9 ]7 s
(4) for <condition> to <condition> loop# w) F& l7 T! |% x" Q6 `. o$ D
<statement sequence1>;
5 q& t% w# E& d W next;3 ]# C1 B0 W' w9 A& A. `
3中断语句( C, A. n7 Y, v: f
waituntil <condition> prio <integer expression>;
( K7 w4 R$ Q3 o0 g- u, w# H2 A6 l; s4 \; t w; }' q6 ?
$ w/ T, Q$ z l4 } M+ b+ t6 T) {以上为常用的函数！
! {$ }+ u1 i5 O9 K2 V0 H7 K还有很多，如有需要我把资料发到你邮箱里
' r1 u8 }# D0 ]7 u- j Y$ Y! K- K1 I; Q' z
5 u$ N$ Q, t, \% L8 x- W' C K# O# M) |( L1 }2 `7 Z
/ Q3 D, ?& {0 [+ Y3 n* I- h7 E- t/ X P8 |! @
) U+ o6 ^5 y6 ^$ k6 T
1 ~3 T4 z' }4 P" [5 T' E* {2 k- g% I" a0 i; S( U! m# F
# u1 {- Q5 g; {; k
1 H3 f& ]1 k4 X" U, q' D( x
|
|
[复制链接]
