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发表于 2012-11-13 08:48:12
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1判断语句' A4 a' }; v ]1 i
if <condition> then
9 K1 m) z6 e3 T( V/ W% o <statement sequence1>;
( ~# T/ ?& ]) T6 V$ l0 } elseif <condition> then
) _0 v4 _$ a; X1 Y <statement sequence2>;
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<statement sequence3>;* _+ w/ W8 }6 R% [. |
end;
3 s. ]4 `; m- P/ i6 G' l如果分支比较多，用：
% j% P. s( [. A! t8 ] inspect <expression> k1 ^, H8 |' }/ l8 g
when <constant_list> then9 J _* p! s/ Z+ t1 n4 o1 t
<statement sequence1>;$ @! H, w) S% T/ B6 K/ T7 W& G
when <constant_list> then/ m9 O- l$ H6 F2 t- o7 ]
<statement sequence2>;
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else8 {: Q) r2 j3 ^" j) A
<statement sequence3>;
+ Y+ H0 {8 D: Z/ Dend;$ q# d# k8 T7 v
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2循环语句 B6 f& e7 l7 `6 F
(1) from <statement sequence1># |7 ~' U0 k$ n) H! p
until <condition> loop
2 v6 Q* `# L& K <statement sequence2>;
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(2) while <condition> loop
0 F; i3 _1 u* j. c3 p <statement sequence1>;
3 q) D# `- Z1 ]+ j end;# `6 D% p @% P$ [
(3) repeat
/ w* x" W" D/ L4 o T; Z/ R' ~4 t( j <statement sequence1>;& z) K; m+ h% ~8 |! k( k
until <condition>;
" b( b8 c. U( Q e" f) i (4) for <condition> to <condition> loop
8 | D5 H# x- b$ w# W* g( { <statement sequence1>;* S8 O5 l( [0 l& y, a
next;
7 S/ A3 b/ Q5 ?; S& V7 k& b3中断语句
- J; S4 e1 n1 n* `" l6 z waituntil <condition> prio <integer expression>;" m `) i) @4 {+ P/ `
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0 \8 F: m' w% O8 o/ |以上为常用的函数！
; F3 L+ B3 d+ L! k还有很多，如有需要我把资料发到你邮箱里
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