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发表于 2012-11-13 08:48:12
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1判断语句3 j8 f1 Q" o4 }
if <condition> then
! m3 h8 S4 w. p <statement sequence1>;
+ D7 `$ T a H: @ elseif <condition> then" i6 S; H+ j$ ?; P1 D. D# N" u
<statement sequence2>;5 Q4 K& X) Y- a2 h6 I4 E# o. o
else
2 e+ y6 N L& V <statement sequence3>;
9 |/ `+ R/ ` z6 w) I2 {, V end;
: G4 R; O! h1 @$ z+ e# b! w1 l如果分支比较多，用：' D, X% S+ A5 g
inspect <expression>7 N1 D' n, S/ l/ A) {
when <constant_list> then
( r9 ~" j7 P- c4 L" S# @ <statement sequence1>;
# W( W& b) F0 e- ?- ?5 M when <constant_list> then
3 I, b6 g0 ~4 X& ] <statement sequence2>;
" }- V( d* p& i/ v8 z ...
+ Q& Z% W! e+ W* `$ v- c else
) j( c. e$ \7 N: Y% _( { <statement sequence3>;. j% ]7 g: Z& t2 }2 k
end;3 s% I: L" b! y4 q0 U, i
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2循环语句
- N4 f, d' }/ d& c v; ~ (1) from <statement sequence1># ]6 w, p5 j$ P. q' O$ j
until <condition> loop. z. g+ X, K- u( M8 j' ~
<statement sequence2>;# C6 W/ C" {1 p% J6 `& h7 I
end;( |4 C* G$ L1 C$ ^/ ?
(2) while <condition> loop
) T' n. T6 @: ?/ s ` <statement sequence1>;/ I: Q2 a8 d4 O1 i, [% g3 A# ^+ ?
end;# {' @' Q/ y: `
(3) repeat " R. c$ P+ k# V/ {' [0 e8 u; P
<statement sequence1>;
4 x* w) [8 ~7 k# O! j( ] until <condition>;1 A3 |1 O1 y% O: g$ m, o
(4) for <condition> to <condition> loop
" t1 t+ r5 |) _/ I! V <statement sequence1>;
' z. ^" A3 i5 p O5 B next;
1 z3 z: x s2 P& z! x3中断语句. d f- ^3 S- E5 m" ]. Z8 T5 }
waituntil <condition> prio <integer expression>;( H% W% i2 p! ^/ p9 I, q" Q
) W7 P. C# R& v* d3 \
% b! D: k0 _' a. L! r" ~以上为常用的函数！
% X+ n: w1 @; y7 n. j还有很多，如有需要我把资料发到你邮箱里 ! ?; o+ J0 f4 r5 z
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