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发表于 2012-11-13 08:48:12
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1判断语句0 u! {! K4 Q- y s0 P: J
if <condition> then4 r3 Q; Y" A/ }1 `2 D# |, j3 t
<statement sequence1>;
1 p0 `* L0 n0 b5 A) h! B) m elseif <condition> then1 |/ G& o% ?$ x! [% d
<statement sequence2>; Y, @1 b s4 x: Z' p% x: H
else . L1 L- X# c, I5 B" j
<statement sequence3>;: t5 n0 ] B T
end;
% \; R) r. k9 u如果分支比较多，用：! A( ?& W) L9 x7 O
inspect <expression>! e8 r1 G' c7 N# I8 w
when <constant_list> then9 k4 M! O0 h% X: [* p3 u9 d5 L. Z, \9 K
<statement sequence1>;
0 w' j1 V( `$ j/ D! y3 k6 \ when <constant_list> then! e4 K1 a+ E) v$ q- l6 o/ W
<statement sequence2>;
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else6 f0 W+ B6 V' W9 D/ X( k/ n" y4 o& C$ v
<statement sequence3>;
6 J% o& A) j9 _end;
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2循环语句, Y5 L' @) r/ |; ]% K& |4 j8 W+ x# ~
(1) from <statement sequence1>
* X* O7 F" ], {! }* ? until <condition> loop
8 p$ b1 z: j+ b- K2 ^ <statement sequence2>;& p- O( J. l' O1 X8 H" F) G
end;# p4 a# Q! f1 t% q
(2) while <condition> loop
) r) V4 {6 A/ L9 [ <statement sequence1>;8 D) {9 Z) ]: u4 W |0 r' U9 D
end;
1 _7 g3 O# X" @8 R/ d g2 c! u' G (3) repeat . k# Z0 J) n( A* }( ?
<statement sequence1>;
p E0 T* G- c! a3 r; ^2 J5 } until <condition>;0 e4 Z' D- d4 L# R$ @0 w2 A+ x+ p4 w
(4) for <condition> to <condition> loop; l5 M# r- Z5 b7 ]
<statement sequence1>;" n8 W, ~% i w8 G/ {& q3 ~3 W- R, H
next;1 Z' c- f* P$ u/ U8 M
3中断语句7 I' d& v' C! _/ H- \8 J; N V
waituntil <condition> prio <integer expression>;
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以上为常用的函数！0 x0 u3 X: U3 r9 ?. y+ D
还有很多，如有需要我把资料发到你邮箱里
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