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发表于 2012-11-13 08:48:12
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1判断语句
_8 m! U5 F" s6 l0 w7 S/ V if <condition> then
; M' {' o, ]$ Q) D2 W7 K <statement sequence1>;
5 @' y; r7 J) l elseif <condition> then
5 S) c# o. V7 S/ o) y! h) j6 J" }) }7 a <statement sequence2>;8 {8 C9 ^) `4 n9 O# ]2 S! H* x. i
else ( D8 M! L# z$ N: }2 B( g. A
<statement sequence3>;$ L8 m# t7 i9 ?6 d; }$ c1 U9 A
end;
( U7 G6 y% }0 B c如果分支比较多，用：6 h; l j* H/ O9 \- h: `: [, V
inspect <expression>% _4 s4 ~4 G- L0 ^9 \8 {! }- A
when <constant_list> then
" ]; D$ i3 E4 D <statement sequence1>;
. H+ g8 q, v! W1 T* M n0 F when <constant_list> then8 i. K1 }$ P) k
<statement sequence2>;9 U2 o0 [0 g1 d, Q
...2 c: M' Y( S$ d! H$ a) D q
else3 R, @, l% e! s. I
<statement sequence3>;% h4 z- V" m: g* T
end;
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2循环语句, @; g1 y3 c* y! f
(1) from <statement sequence1># u0 Y7 l$ o+ J# b/ F
until <condition> loop( I8 v8 m8 \. I! V
<statement sequence2>;
( S1 M$ G( P7 q3 c6 P. ~( e end;+ i5 D& u/ ]4 J, G% W( F" ^
(2) while <condition> loop0 x$ x8 ^+ y0 U) X
<statement sequence1>;+ U9 `7 t8 k! H# c
end;
, H# k7 j5 j! c, C; I) ?2 K (3) repeat
) j* x, M6 G W6 G: R1 M' Q E <statement sequence1>;
, K% F+ b+ K/ E, @4 H until <condition>;" U2 K0 Q# M5 ]* g0 M- \, Q
(4) for <condition> to <condition> loop
4 r; N; ^+ f- g; X; J/ Z <statement sequence1>;
" a3 M' y. |9 z9 g next;
1 U" y8 B, W/ F. y, A3中断语句
! m8 l- s% {% M2 e4 k+ x waituntil <condition> prio <integer expression>;& o1 ^# X% f" \# h& W" K4 B
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以上为常用的函数！) s- z, q; J' T8 S
还有很多，如有需要我把资料发到你邮箱里 6 A8 x% L1 f2 e% k' N5 u- A; _
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