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发表于 2012-11-13 08:48:12
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1判断语句, m' U; I) v$ ]* i! l
if <condition> then
* P; u3 G" \# N, d6 \ <statement sequence1>;0 f) M. s/ P% t: E/ f8 D0 W) a4 ?
elseif <condition> then2 g$ }7 z* G0 n1 }: q% x4 ]
<statement sequence2>;9 u6 _) n& i: B, W
else 0 r# x3 G1 T% K$ X5 g
<statement sequence3>;
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如果分支比较多，用：
& y3 H z: l) k9 C0 u! c- c8 } inspect <expression>
2 m6 @" u& {. b5 P- T5 \; Q8 U when <constant_list> then
7 a! b' G/ |9 k# I2 ] <statement sequence1>;
' f$ h/ E. }9 W, Q! ]3 w when <constant_list> then+ c4 B6 N, Q" \! f' J5 |- M+ n! X
<statement sequence2>;
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else$ |# P3 A3 j0 L' Y |4 P8 @
<statement sequence3>;
" }( o! E& ]: n/ f- B$ l; yend;
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E1 {2 M: S) }+ ^9 I2循环语句
& n' Q2 A4 }- Q6 G (1) from <statement sequence1>
, q3 t' `# ? N# q; }8 { until <condition> loop
# v, W) z2 x% w9 u5 C6 ~ <statement sequence2>;& a4 q* V5 h6 @% g2 N0 N
end;+ `4 ~4 M) y* O9 N
(2) while <condition> loop$ W ]) Y% ~7 \; a0 }( m
<statement sequence1>;
+ d" h% S, R6 O3 m. n# b end;" \" T. J; S1 l ^+ n6 L/ J: h
(3) repeat
9 [) D" ^4 r. }2 @1 ~# E <statement sequence1>;
( j1 f; ? k% t- D n* J9 T5 D F until <condition>;4 J! B$ @" @1 X( l
(4) for <condition> to <condition> loop
3 J+ U S z7 A# o <statement sequence1>;' L; h- S0 a: Z- S# h
next;
; b! y& q+ A8 x! Y2 J0 L# X5 `3中断语句" K) k1 y' i! e
waituntil <condition> prio <integer expression>;4 v& m" \& `& |/ Z8 I' { c
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以上为常用的函数！
7 s% I# _# J8 N还有很多，如有需要我把资料发到你邮箱里
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