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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5 d. U: z Y% u
if <condition> then
, v2 M, k2 {4 y' e" R <statement sequence1>;. u1 J' R/ `/ x& L
elseif <condition> then
6 X: y/ I0 J- l! ]9 y+ ~, w0 [ <statement sequence2>;- z: }0 v* l/ f& z5 ]0 c' G5 \
else
# V9 `) h1 j7 A <statement sequence3>;% n, j# l) P6 b$ {& I& N
end;
3 u( w. a9 I; y, u如果分支比较多,用:. e& D" x* R1 o1 O2 |; E- P
inspect <expression>
* Y2 n( K6 c3 @2 o+ g! ?. v when <constant_list> then
+ @3 c5 S1 P d# n# Z5 F4 j3 j <statement sequence1>;
1 O* P0 e9 S# ]. d when <constant_list> then
5 T3 z) @% p. x: T' S <statement sequence2>;7 g* s! K% h h5 N' T7 |( g2 y
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else0 Q5 \8 _, W( y2 C" m- r; t
<statement sequence3>;7 O0 X* D( `! p7 x1 I
end;& O7 @2 |# Z: s1 I7 |" M$ }% f
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2循环语句
, X: k( j" Z2 C! c% H (1) from <statement sequence1>; g( ^" c, b8 r) h! u% q% b0 C
until <condition> loop' c, U: x/ b9 g2 [- T( j7 ^
<statement sequence2>;+ P }) \0 \1 q: ^8 M( s* l! h
end;
' b K4 n2 I! ?( R: n1 m (2) while <condition> loop
4 D8 t3 Z+ B9 I% \ <statement sequence1>;& {" S1 o3 L: I8 {) f
end;. K5 j% g8 z. F- ]7 R- F7 s9 s
(3) repeat
: A( ~* G/ [2 U0 ?8 v <statement sequence1>;3 f- B+ j4 Z0 ]2 Y& d. {4 H# I& |
until <condition>;
& s U# |0 N+ C7 U (4) for <condition> to <condition> loop
; z: P) d) S, ?8 c( t% e! C <statement sequence1>;
% R+ [0 \, R+ A# e+ D0 t' v! _5 B2 W next;
7 L/ V' e* X$ P3中断语句; f, I9 L0 V" T& t1 v! F& s
waituntil <condition> prio <integer expression>;4 V) q8 n+ v( w F% C* n; y
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以上为常用的函数!
4 R: N4 ?9 l% C6 a0 T( R还有很多,如有需要我把资料发到你邮箱里
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