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发表于 2012-11-13 08:48:12
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1判断语句7 V1 C# b" s! F0 } H
if <condition> then4 a8 W) o5 n: H. d
<statement sequence1>;3 ?5 e+ O' }2 l
elseif <condition> then4 v/ W% W y7 t7 }
<statement sequence2>;4 d3 z) @- K4 M7 y+ ]2 h9 u
else 9 g. M- d/ o" ~: q$ s. j
<statement sequence3>;
% i' ]2 s; S# l, [ end;
/ b. a3 J0 z% @" e. |3 @如果分支比较多，用：4 G/ t% | }; L0 y4 v4 u! O
inspect <expression>% ~+ f$ x) G! K$ v% R- n- N
when <constant_list> then( c( X9 k( A4 h. H
<statement sequence1>;
# m6 ~; E4 A8 q3 t0 K0 V when <constant_list> then
% H1 L0 g; R+ H' r <statement sequence2>;
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else
4 b7 h9 c7 G/ I/ s5 y. v% R <statement sequence3>;( p8 h% n; [- b) L
end;) l8 u' \' v7 H. l3 b$ N
6 X+ Q: e' v& r% S2循环语句
& D6 T' D4 b i, A: P. Z5 q (1) from <statement sequence1>
/ O% I4 d3 w; h, b' K until <condition> loop' a7 }# }. ^0 P
<statement sequence2>;
. `1 ?4 M) Y5 A. s2 J# Y end;0 f+ b4 |! @5 K* V9 j
(2) while <condition> loop* R) n( t1 E* g9 J! e, L6 [$ u2 |) \
<statement sequence1>;4 o9 h, o; ]+ h, p; [
end;
( Y5 K# x% z4 E4 S& S% O (3) repeat
; w% A0 ^+ T! B2 r* m6 s/ H: x <statement sequence1>;
+ R# r( ~( x r7 Y1 p' L until <condition>;" x/ j, N5 D/ Y8 u: X! X2 m9 ^. r
(4) for <condition> to <condition> loop
; N2 A. S, a' m5 G1 ?& | <statement sequence1>;/ n, T8 d" S- h
next;
* w; Q# G% n* ?3中断语句
8 y! F5 }5 W( M$ M7 |+ h' t+ M' X waituntil <condition> prio <integer expression>;2 n: j1 ?7 p5 I2 Z! c, K: f
7 R3 W+ V, u4 Z
% T4 B8 H& ~; y1 v6 x* ?以上为常用的函数！
: u: y5 a9 u, a+ S! a* d: U1 {还有很多，如有需要我把资料发到你邮箱里 , Z+ a7 n0 x# s* n W, D
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