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发表于 2012-11-13 08:48:12
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1判断语句
4 k% l7 e( l; L7 i5 l% w if <condition> then
0 g1 D* @% ]! O8 s8 k! g <statement sequence1>;
9 Y6 }, p' l3 u% K \ P& t3 E( j elseif <condition> then4 f8 j ]) f- S( I" ?' l$ h
<statement sequence2>;
7 Z8 J0 f f8 y% O! b* C: U7 j8 y else
/ Y0 s/ Q& c) _* b5 v; U <statement sequence3>;4 J4 X6 [4 i/ i6 G" e
end;
5 x: }" q* [+ l& i+ Y% k如果分支比较多，用：
8 K- v7 i+ m7 G" t inspect <expression>; x V% A3 r- r6 Q% B; n
when <constant_list> then9 w, ^, u8 G1 N( l
<statement sequence1>;
. [% Q. k# Y4 |, \$ Z# \1 ^6 f when <constant_list> then, Z8 L* ~# V7 j8 i! C% h) B8 K
<statement sequence2>;
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else
" G5 {8 l9 O4 ^( \ <statement sequence3>;, X/ v7 Z5 b4 |
end;. e( W2 X4 G# A8 Y4 s# C
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2循环语句& Q$ o/ ^4 l& j
(1) from <statement sequence1>1 K% G1 B% Q7 K6 y5 N, v7 C u
until <condition> loop
! z7 v3 q, ?6 w( u' l; w8 u D' C- V <statement sequence2>;' K! b) M7 q( I! u' T! m& ~$ @
end;% m1 @- u1 q4 o* ^% w8 M
(2) while <condition> loop
! ~% R6 E# g" p6 B/ ~1 r <statement sequence1>;
9 N* y, l5 [+ V# I* ?, W end;
9 h$ w' H4 }. W' Y1 x- N& |' E (3) repeat
. W- S( J8 } } s- t <statement sequence1>;
8 W. u, h* [' q until <condition>;$ g" I" D1 W7 g% Y* U3 r
(4) for <condition> to <condition> loop) Z9 p7 h* I- q$ [
<statement sequence1>;
( y X$ x# ~$ R$ B* x next;
- c5 H/ F9 M2 D/ w2 t& m3中断语句
) f, S8 o4 u' A5 e |1 N waituntil <condition> prio <integer expression>;4 @" t/ v+ c) E% h& _8 e
x1 W( s' Y. r/ B1 M% v& |
C: w; F% H! i1 P6 Y% C) D8 |! i以上为常用的函数！ |$ h8 U% ]7 b8 K+ W
还有很多，如有需要我把资料发到你邮箱里 $ w$ S; s2 J1 v0 i2 ?
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