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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
3 _5 f8 y0 Z p( N8 m8 w if <condition> then+ s; E( `8 P: y7 X* Z9 Q
<statement sequence1>;2 ?( |3 R! {! [0 A" E
elseif <condition> then# s, F0 G: u+ e: @( t& g' M8 Z
<statement sequence2>;( Q! q) V, a/ V" w8 W5 F
else 3 p/ w; ~$ R7 s3 l" g- e
<statement sequence3>;
0 Q9 x1 P5 |% }# w end;
. t4 k9 ]5 ~! M如果分支比较多,用:+ W! x4 g9 {& g
inspect <expression>
! r# D# Z+ u) }) B" V8 m" ^ when <constant_list> then
: r9 K3 p2 I U4 K, U, ?& N' { <statement sequence1>;7 g6 ], a3 M V/ X% v7 M& w
when <constant_list> then
( k# M) Z5 M3 J$ ~ <statement sequence2>;1 X; T4 X/ A4 J; {7 }7 U
...1 I" J2 E+ G4 v9 z, S2 k
else* R9 D: ]" C! h
<statement sequence3>;* k- |6 [# _1 U4 g( v
end;0 U4 E; @% `0 Q/ s8 k8 ]; E
9 ~4 f; A) F) _+ Y2循环语句% E7 j0 @* W6 N3 L7 |3 l
(1) from <statement sequence1>
l$ K% ~# q2 G# l1 `' g until <condition> loop2 R) Z6 R# b$ e% ~) ^! c0 ?* w
<statement sequence2>;
' D0 S6 _1 H- P2 } q/ v4 d end;
3 `; u% c8 U" M9 L' P (2) while <condition> loop
0 B' j' q' ]1 H2 a& F <statement sequence1>;
5 S( L6 L3 {) Z( w, m+ g end;
A% H8 g/ d. P (3) repeat ( F' V6 B7 N0 E% p
<statement sequence1>;; e1 `7 s0 c' G
until <condition>;
, j$ N- V& @2 r+ \ (4) for <condition> to <condition> loop
6 P, g8 i0 ?+ ^! p. m! A <statement sequence1>;
, g; H0 A) R: [5 v! ~3 h$ ` s next;! ~- v+ _5 d2 l, V4 u- x
3中断语句
1 n7 A0 O% z- ]# A* e' ]# @ waituntil <condition> prio <integer expression>;
4 f( R3 X( q, _! u) \( o4 e4 y9 Y# \* {5 l; u
- ?8 h2 ]( ~- u) S# r* \
以上为常用的函数!% S [* c3 H6 T4 L& a" @
还有很多,如有需要我把资料发到你邮箱里 8 P# n: {2 y8 ?' s" V \7 c2 J
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1 \7 r! X! {; H9 D/ X
0 D' |) |# \% p- c1 _4 r# b$ i; F: e% R7 W6 k* ?
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