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发表于 2012-11-13 08:48:12
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1判断语句
7 w$ g. J7 J9 L1 { if <condition> then
7 T, g1 B) @9 T! k5 ~ <statement sequence1>;' W4 s2 [% |9 L& E. J( U0 R7 P
elseif <condition> then! y$ A" Q, u) k6 B$ I
<statement sequence2>;4 M5 P9 }. |4 A9 {+ ^
else
: Z8 J7 n6 |3 B( J1 S' m$ V <statement sequence3>;: W- {$ A8 b$ W. h% D$ ~# i+ B
end;
9 ^) i& E0 H2 v如果分支比较多，用：# z% J t4 C2 k# h( a
inspect <expression>
0 S2 A, }, i7 z2 Q6 n when <constant_list> then8 J7 Z/ a' C3 ~. ^; @% e* J
<statement sequence1>;7 a* D, c8 V- R' x8 D0 [
when <constant_list> then% ^1 @& N2 Z; o
<statement sequence2>;' X _3 a, w8 M& L, ?
...4 X7 ~4 n7 x1 D- L
else
. {) G# ? X2 |0 ?* @9 r$ \8 Q+ D' F <statement sequence3>;: X5 z+ Y4 g# H
end;* L& z5 s8 }: \ Z: z: s
7 d5 T5 ~& |, O8 x$ Q$ E9 m1 ~) r2循环语句. }/ w, I/ {1 U; R- q
(1) from <statement sequence1>
$ h3 d+ o: r. V until <condition> loop
- ~9 |7 X G/ j: [9 a <statement sequence2>;; M* V5 f! r& I7 Z+ t2 Q" ]- N: F' C
end;+ b& P' N& N& q0 R! p, S
(2) while <condition> loop
; H4 h# j+ X! x- O: R. x& r <statement sequence1>;
$ J5 @/ U3 l( b end;
/ i$ v2 G- _4 f5 z( x (3) repeat
5 {, w' B! T' ~/ M& \ <statement sequence1>;
% D% F* K4 n+ K7 G- V until <condition>;0 o z* w# t$ v1 l3 [" D( m
(4) for <condition> to <condition> loop
1 W) C7 O4 R- f <statement sequence1>;( E' d' \% ~* p7 x0 r
next;
( H" k5 s) h3 N8 s3中断语句
2 c$ v) j* _. X$ @& _% _/ Z4 P waituntil <condition> prio <integer expression>;0 T: o; x' P' s( N0 j5 y; j
8 [7 t9 i4 X9 ^2 \/ U( T ^
6 L9 ]7 Q; C. |+ u& K以上为常用的函数！
: l* J& P8 i3 o, l7 ?还有很多，如有需要我把资料发到你邮箱里 " P0 q4 r9 d4 Z$ [4 P/ o' m! c6 b
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