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发表于 2012-11-13 08:48:12
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1判断语句
5 N" Q+ I4 F; p( [: [ if <condition> then
' C. {! v9 r! {4 _6 t9 n) i <statement sequence1>;
- Y5 J! }# X, `4 v/ a; Y9 ? elseif <condition> then. k) P7 }$ ^% V$ Y. E9 E% X4 |9 T
<statement sequence2>;& x+ Z7 I1 Y8 T( R
else
: z# H2 g% y. M2 c* \3 o! v <statement sequence3>;* {$ J7 o( p1 N$ G0 T
end;* M& Z! {5 j: M$ M4 U' z; I
如果分支比较多，用：
r7 c7 ~1 h4 ] v6 E# j inspect <expression>! L" q7 t0 N: j+ h% k
when <constant_list> then1 A0 x8 u8 E; H
<statement sequence1>; m ~3 l: Y8 \0 C& }5 I. A. y
when <constant_list> then
% ]; s0 ?8 w6 L0 G, B <statement sequence2>;
R& R! S% l( H( g* ? ...0 a9 q0 [( D B3 W2 v% b: r4 Z
else+ f* o3 h; D+ X' h( N1 J, y
<statement sequence3>;& K$ G( n5 r0 {/ |* S: k# J! Z
end;- v0 g. l0 e5 O+ r. F0 h
5 u& N$ d) p* M
2循环语句+ Z. J( c V/ Y( E
(1) from <statement sequence1>9 T. i0 e2 V/ Z/ ~' O+ |5 e% T/ r" {
until <condition> loop
/ R+ _% Y6 M5 P; W' U <statement sequence2>;
0 a- Q- ~3 X7 k7 K: M7 e) Y2 i end;, e9 S) N9 Z( `9 K
(2) while <condition> loop& l% R1 T6 s5 F
<statement sequence1>;: z0 B* o `' g0 @5 Q
end;# o. X9 p O }
(3) repeat ' y# V. c% L4 S6 \7 e* u3 d
<statement sequence1>;
, R& M x. c9 `! T until <condition>;
. i7 ^& g# _2 u4 @! {$ S (4) for <condition> to <condition> loop# f( r8 e, X0 \, J/ h+ p
<statement sequence1>;" P( e, }* @: h
next;
% U; ^# T# |. R, c6 |1 s3中断语句2 i! [; z/ O) R/ Y; \/ B
waituntil <condition> prio <integer expression>;2 z" ` n" v7 t0 q' a% e
* O$ [5 x' h& v: ^4 c
% L+ x7 x3 Q7 o- @* Y8 G; p# D) L以上为常用的函数！* N/ r2 s- C5 h7 _3 l: n6 K
还有很多，如有需要我把资料发到你邮箱里 0 d$ l' o6 f. X o3 s
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