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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4 f2 L; T3 ?1 ~/ w( g- c% i. O- l& t
if <condition> then
% J# g9 k0 s( L2 c. y t <statement sequence1>;. ~ E% D! [ Z4 S* z& b0 c
elseif <condition> then# Y% O- @/ l0 q8 t8 `7 @; R* C
<statement sequence2>;5 F( Y0 h1 O& f& N* S- a
else / s6 O6 {/ \8 n- N# |, `
<statement sequence3>;" Q n+ T% k/ K. j: T0 F: I6 _
end;
( \( B% o& L( r7 X, e! H如果分支比较多，用：
) n; c9 }; X1 g2 Q$ V, W inspect <expression>
6 ~5 _( D2 e3 M( E0 V) q# b when <constant_list> then
2 Y. Q( }2 P/ J+ ^; S <statement sequence1>;
6 U" j. ~1 a; t( E+ ] when <constant_list> then) Z2 [' @5 Z' u6 O+ B% X
<statement sequence2>;$ S* {4 ^1 @% C. P- o$ e; Y! G u
...
/ l M9 P f0 j9 N$ S else
# x' Q/ g9 `4 p' H9 s2 P <statement sequence3>;7 G% l, J: u2 D# s: Z
end;
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2循环语句
0 B/ N0 K, S, Z# L% f0 k F+ ~ (1) from <statement sequence1>
q2 b+ D t2 `! [( y until <condition> loop
: ~5 f5 L/ p- G; d3 ~% p. K <statement sequence2>;
) M. w# I, I4 Q/ }# w; E D end;1 I0 c" o+ P3 S1 z1 H6 F5 A
(2) while <condition> loop* @5 I3 y; }% i$ k$ j
<statement sequence1>;
7 h( w. m) M N* O" {: m; ~) f) Y end;9 y0 T2 h5 p8 M( Z6 E; x( ^
(3) repeat
$ b \ d+ l. h% r, e9 j' i3 A <statement sequence1>;: n" C& _$ N, Z+ J
until <condition>;0 C0 h! |$ k5 `) I
(4) for <condition> to <condition> loop
) ]0 ~1 s; g ? <statement sequence1>;
; B* o+ T3 i2 {+ U. b next;
! s g. l; R p; _0 Y& N. ?- e; q3中断语句1 V$ @9 w0 s( n, ^( W. W
waituntil <condition> prio <integer expression>;! W7 t+ v8 Y o: H
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以上为常用的函数！
# a, ^# M; C' { z4 J0 a+ a& |还有很多，如有需要我把资料发到你邮箱里
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