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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
# _( I [6 b) p, ` if <condition> then
: i M, Q4 J$ c9 b y <statement sequence1>;
! ~+ R! w' f0 ^: e2 r0 Q% l! g elseif <condition> then
5 I; Z# I5 S; H4 I9 ]4 i5 L7 f3 } <statement sequence2>;
+ } v8 W8 Y: ]* h else
+ M& K! D8 K. ] <statement sequence3>;
1 p/ O8 o. x2 m* S3 s! F end;
) S* G1 y V3 j ^ K$ x如果分支比较多,用:
. B# ~) g' R! m2 C% n inspect <expression>+ f6 j: P( D' r% C( F# N0 U
when <constant_list> then
/ a4 F; N, ]. ]. O; g! Z. \ <statement sequence1>;1 m7 g. E( G$ |3 n$ p+ _9 V
when <constant_list> then X0 r9 X; B# S" e5 l/ Q
<statement sequence2>;" v+ F' M- ?8 K2 c5 a7 p
...
# {# v$ o% N+ _7 h7 p else
5 p. g; l, r/ z8 ? N) w <statement sequence3>;1 @$ c7 }# C3 L% z: y$ p
end;
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2循环语句
+ Z$ {6 x2 q$ n3 r0 A: D2 U* s" N (1) from <statement sequence1>3 f3 r. G7 V, ]3 Y4 s/ m- m
until <condition> loop
- h$ b+ F1 J2 Q! r# ?; [ <statement sequence2>;
; |7 ~. ]$ z1 D w4 x* y" G. Z2 u4 l [ end;5 p, _' y. n' W0 g
(2) while <condition> loop
" U. s6 b9 W2 G o <statement sequence1>;
/ ?1 g5 E) {& _3 m3 g ?! B0 i# u end;
" X# y9 }6 w+ F& P! R: G (3) repeat
3 i/ f& a* f8 S, p. b4 [% w+ S <statement sequence1>;9 E% C' v9 I( k- y
until <condition>;/ z' `, ]# h5 H
(4) for <condition> to <condition> loop
8 B L# y5 H e* N$ v <statement sequence1>;# O' j7 D7 M- e. m" r3 p5 p& G
next;( U! V7 Z/ Y7 W. c; p8 D
3中断语句
0 N8 r v0 Q, w, U waituntil <condition> prio <integer expression>;; H: n) G. V- U! n
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! U9 H5 }( h/ N: _6 d; ~以上为常用的函数!, Z) T, I. m; F4 \* F) @5 S
还有很多,如有需要我把资料发到你邮箱里 , d4 W2 W1 Q$ g+ x d0 Q
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