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发表于 2012-11-13 08:48:12
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1判断语句
: Z3 W ]4 ^/ g _ if <condition> then
# `; [. m3 G' ~1 z; }) A <statement sequence1>;
' k' z, Z( N' n% n0 H: V: {/ \: @ elseif <condition> then+ S( Y/ d/ X4 ?& l* u
<statement sequence2>;
: W- O7 w# q* @5 C7 ` ` else
; G/ y6 m5 J( B$ _9 Y& ]* ]- ? <statement sequence3>;3 Q/ U- G1 I N* K" f" E
end;
& j- d5 U, j$ [; x' E如果分支比较多，用：
$ k+ Q% Y8 \8 J$ C: y+ ?. e inspect <expression>
) Q( n s- K, m; R when <constant_list> then( n& e4 g z: | k6 E
<statement sequence1>;5 K1 K4 \# J. J1 e; H4 C
when <constant_list> then/ P. a( f5 Z) e& Z, C. {
<statement sequence2>; C( Q7 L4 R! R5 f2 i+ C/ N9 K
...
( D0 s& K. d \4 ]4 c. N$ W- H0 P else
- R. x. z6 K# Q1 G( N <statement sequence3>;1 o6 ?" K1 |/ Z H5 \ k; P" H
end;. d2 r5 t, l ?& N- ?
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2循环语句
$ r, f8 g7 Y0 x G1 P (1) from <statement sequence1>- X4 ^- `/ Y. b
until <condition> loop
5 p1 S2 o8 f5 v- r, q) h <statement sequence2>;. F0 t- c& B4 B6 ]
end;
+ ^% r% k9 a. m+ V6 ~" r( d0 Z (2) while <condition> loop8 N7 O' J3 {/ k% V% i3 t# \
<statement sequence1>;
4 V9 v+ n: b5 t3 |3 _8 P, H+ o! p end;
: I/ k3 g( U6 @$ {# ^. N# O* w9 I+ \ (3) repeat
; ?1 s: S" r7 q2 y8 a9 F( F8 s6 U <statement sequence1>;" F, W# h0 u3 X* Q1 Q
until <condition>;
; ~3 ^1 d# I5 Q5 Q+ l (4) for <condition> to <condition> loop; I# v F8 M% _5 t; Z
<statement sequence1>;* b' D0 Q! w9 L: t/ f; S. g, g
next;
3 g; k) [: B# Q% |3中断语句
+ _ W6 D/ k. n6 I1 O' K waituntil <condition> prio <integer expression>;
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* V% m D1 f$ {) z
: X, m N3 S" s( M6 A/ n1 {以上为常用的函数！! M; j6 U6 R/ x$ j7 G
还有很多，如有需要我把资料发到你邮箱里 8 |; t* Y" `3 p# l; Q" R* i% L& I# g
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