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发表于 2012-11-13 08:48:12
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1判断语句* d$ K' W5 [, d# e# \
if <condition> then
& R% v2 \7 M, }' V9 c* G <statement sequence1>;
$ f% S- w" X" g; n9 Z8 I; t) n elseif <condition> then; k% n1 j2 l: N& X
<statement sequence2>;
) t+ b* {2 F v" \/ [" U8 f! x else
# r" m v- M* {6 u <statement sequence3>;# O$ }* ?5 h- y1 I1 M
end; Q- i1 l# ~- W! F5 n# O; s
如果分支比较多，用：
+ l$ o1 P9 N1 b$ g* p8 _! T inspect <expression>
5 a/ v. d4 X8 K& u" D when <constant_list> then
4 L8 F# X9 }/ r, F5 C <statement sequence1>;
_) a$ Z2 f4 Z# y" o when <constant_list> then
0 [7 [. ^$ E% V9 g: v <statement sequence2>;
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else
: p+ J* z& K8 ]6 J <statement sequence3>;
5 I2 L. w; `6 m, J" ]/ O! S" b& qend;! A+ ~$ Z* L& T9 m" x
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2循环语句
( h6 @' O! F% a6 | (1) from <statement sequence1>
7 g7 i3 J' W! \ until <condition> loop
0 c: P7 E9 a6 P. l0 t2 d <statement sequence2>;" \. ]1 h, f5 w8 f9 Q
end;. U- T$ t. j5 _1 O
(2) while <condition> loop) c3 f$ E6 u: P4 Q; Y
<statement sequence1>;- Z( r9 ?; O& O6 d' V& G: k% |/ M
end;
# o7 \2 C _. C6 S/ o0 ` (3) repeat
# c7 v6 t2 Y$ F$ d3 y <statement sequence1>;
i! l4 z0 d+ C# ^ S/ e until <condition>;
- x) h7 Y* D- m) _5 v (4) for <condition> to <condition> loop
" p$ s1 T1 j) y& x; ? <statement sequence1>;
9 T) p" M" s1 E9 Z8 l) k. U next;) P. d U! ? s6 a! K
3中断语句4 E d0 L! u* O. i" b
waituntil <condition> prio <integer expression>;) k4 q# G8 {) T( _0 R
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以上为常用的函数！# G8 X+ K" O Y2 b
还有很多，如有需要我把资料发到你邮箱里
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