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发表于 2012-11-13 08:48:12
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1判断语句
8 j9 @2 U2 | b if <condition> then
9 a4 Z7 ?! x3 _! q- i <statement sequence1>;7 i. u9 y4 X8 p' p8 B+ q/ @) Z
elseif <condition> then
. u( A1 f: H2 Q <statement sequence2>;
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<statement sequence3>;
9 P4 t+ {* U" ^# C3 g end;
) [1 E4 b, O1 n如果分支比较多,用:8 T! i' e( l. a' X
inspect <expression>' w5 [0 H ]0 ?& ]
when <constant_list> then. R( U# _4 w3 K% `8 A2 e" U4 d; X- k
<statement sequence1>;
1 j j3 u1 \" i# g. O* Y' s when <constant_list> then
5 i# k# i* {0 V( U9 f! g& i2 t. ^ <statement sequence2>;
! P6 U# t$ H+ V8 p- ^7 F ...
; ~ C, Y" p$ H3 q" _ else
7 R, G: H1 e: K+ W7 N- b" Y <statement sequence3>;
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2循环语句) Q ~0 X& H( K* J
(1) from <statement sequence1>
- m. l/ U9 U, J2 _ until <condition> loop
" S6 z3 c9 [9 @8 o <statement sequence2>;# U2 ]5 k3 @- E7 d
end;
3 z6 _! G. A- ~9 t! c (2) while <condition> loop" ~1 {2 Q! v8 D# E
<statement sequence1>;
5 @! e0 m1 Y. M" T L, b0 z end;) t3 Z/ k6 }+ D) v" M
(3) repeat 0 d n3 T0 Z" _' G% _
<statement sequence1>;& B5 h3 ^0 j! g, |
until <condition>;
3 K2 y4 [3 R% \1 ]/ F (4) for <condition> to <condition> loop: t& h" P9 X! t! X
<statement sequence1>;0 K) I- f4 Z8 m! C8 g, g! y
next;
* J/ L" c8 v& @* U) D2 B0 s# L, l6 q3中断语句( b, d' b" ]+ |8 u2 {
waituntil <condition> prio <integer expression>;
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以上为常用的函数!
0 J) B+ a5 E& C; x还有很多,如有需要我把资料发到你邮箱里
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