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发表于 2012-11-13 08:48:12
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1判断语句& J3 w5 w# C7 f0 \' ?, U
if <condition> then
$ j( F, X2 P, ]* M <statement sequence1>;
' ?2 x1 Z- p. z5 {- T8 s elseif <condition> then( W! X3 A h. o& Q$ n
<statement sequence2>;0 m- _( \& S- Z8 l3 J
else U- W8 d5 |7 S; o4 ~) n
<statement sequence3>;- W4 x4 `* R$ d5 T
end;
$ E/ G" n% [' L: f4 X; p: b5 {如果分支比较多,用:& d8 w7 \8 u% p) X% P
inspect <expression>$ I% g, v. v5 f- K2 E) S
when <constant_list> then
$ @2 L; q) _; O& |$ y <statement sequence1>; m( m K. }6 V) A' ]5 {; d
when <constant_list> then
: b/ K# v4 i4 A( u1 A% k <statement sequence2>;
% `3 F4 b9 x: ?! D2 |$ I0 E; N4 ] ...
# F& m% W' j) |, c ~ else1 ]5 |, t, N" {* b5 f) {
<statement sequence3>;* ]9 ~; k+ V$ m- q! O+ y( F2 K
end;
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3 m; M4 x- G: N% p; m+ i$ Z2循环语句- D8 [* V* \- `8 ^& H0 D
(1) from <statement sequence1>
& s1 T+ ?6 K( S1 d0 ? until <condition> loop
W, q- u! t; v# y <statement sequence2>;
" y4 Z$ v( B; \# z end;
: y- e3 M: f$ a3 C8 f, ~ (2) while <condition> loop
, o! V9 G( V# v1 e <statement sequence1>;
" {6 Q) K) P( E1 z8 ] end;
0 p& t; g M- E& d' K4 | (3) repeat
. c! {) |( Y5 z$ a0 g; B <statement sequence1>;
1 r; B8 }; p/ P- p. T' o# {4 ^ until <condition>;. v; R& C1 D: v% w1 y& F
(4) for <condition> to <condition> loop+ V. v6 W) @7 Z1 [7 Z% _/ l
<statement sequence1>;( L4 b# x9 k" m0 I, H
next;( h6 c; W3 n4 @: U1 y$ I
3中断语句
+ ]. F3 N! j; Z/ R waituntil <condition> prio <integer expression>;* |. [8 [/ x% _
" l2 I; k1 T/ \
$ m) u" v. Z1 z; d+ S" H- u以上为常用的函数!9 ?, f; w h& W9 A' X5 g
还有很多,如有需要我把资料发到你邮箱里
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