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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
0 L- S8 o. s. {; T if <condition> then) o% o+ `; C7 q, N. Q. X: Y7 v8 }
<statement sequence1>;+ [) W& S6 _4 O: l% j7 u& z W7 R
elseif <condition> then9 ~0 n+ _9 b7 \9 C
<statement sequence2>;
7 Q9 n) g$ ?6 w3 g- L; `& y else
6 D& Z% g+ {4 x& j( Z# } <statement sequence3>;
4 _! |$ U( J' T" s% { t | end;
[3 j5 Y7 _5 @& f/ Z) |如果分支比较多，用：, i3 X; E+ `3 A# f& L- ]0 ?
inspect <expression>; `4 p' h8 [7 ?6 N* p6 k
when <constant_list> then- R" J9 {+ h- I1 r& L* y+ z4 a! H
<statement sequence1>;
; t- Q' Y' n( z" }, C0 ] when <constant_list> then
5 T! n- b, @5 q$ I# Y <statement sequence2>;( I# M" ?: s/ G
...
% }4 S5 P6 a+ p4 ` M7 r else
( C* Y8 d0 r5 R5 ^! w1 G( k <statement sequence3>;. Y% y& L" n7 _- H9 Z& f+ P I3 I
end;7 C9 L5 h7 O% n4 G9 I+ k) z( i
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2循环语句
1 F; o6 U/ y A5 Z( [2 b% J (1) from <statement sequence1>
9 z( L; y+ ]& a; o6 I until <condition> loop
. T1 j& n; M3 a: q9 E3 p <statement sequence2>;, {% @2 ^8 \% V2 h I2 O/ C' W
end;( v0 p9 C6 I0 s( x" G
(2) while <condition> loop
" U& V& {( F! `5 K <statement sequence1>;- V! j9 v% {( V; K3 k2 B
end;- p) X& V% \; L- Y: _/ I8 [; l
(3) repeat
* q' K0 {5 e# J: {4 Q: t) X2 F <statement sequence1>;
2 U( ?7 |* @3 t% q$ K until <condition>;/ g% M; F% R3 s/ e9 @. c' R
(4) for <condition> to <condition> loop: U" l6 g3 `+ `, \" P3 p
<statement sequence1>;
( \( V1 f4 \; X5 w; F) j* ]5 F next;
; B# E+ k5 H: u' v3中断语句1 G N! E% i" V% \1 g2 J
waituntil <condition> prio <integer expression>;
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8 `, u; h5 `+ w& z- q$ f! G! Y5 Q0 T; j: v8 W9 X% ]& R; U
以上为常用的函数！% b T' X4 K, k. g/ U: q
还有很多，如有需要我把资料发到你邮箱里 ( r2 M% Z' g% s* j1 i& r
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