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发表于 2012-11-13 08:48:12
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1判断语句
$ R* k0 q C: j! G* z3 L if <condition> then
0 ~$ r% O: a+ x( D, { <statement sequence1>;- ~9 I5 X" m2 ?4 t, d9 S% E
elseif <condition> then7 d0 q' o! e( V! ]6 E! F$ y- e
<statement sequence2>; t* k8 d. A& _# X' Q
else
6 r7 {2 `" _4 @$ p <statement sequence3>;
% O& i0 P5 H( e end;3 K! v9 B7 S, o) `
如果分支比较多，用：
( ~9 }! {, e* a7 R1 ~ inspect <expression>, C- ?* Q6 `6 n) a: k5 {4 P
when <constant_list> then3 p" h# r0 l+ Z) W5 ^
<statement sequence1>;+ C* `# x' z. s( n
when <constant_list> then
1 L" X8 q# _7 |" g9 V' L0 @& }) n9 _ <statement sequence2>;
: D1 ^! `# R9 s. e1 q ...
0 }% `" M7 U, T% u else
4 R% C' [+ S/ G4 i3 | <statement sequence3>;
4 N4 h' N, T. G6 l2 R/ Pend;
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2循环语句- v+ }" f. o- q6 m3 \
(1) from <statement sequence1>
8 F i# P: u0 Y until <condition> loop
4 p! p" B: z" M+ S0 N! w* b% Q <statement sequence2>;
- B8 Z# M4 P7 a, {+ D0 R end;
7 \9 J' }* b' G! \5 X (2) while <condition> loop
. ]: R! J( H7 i( a <statement sequence1>;
8 U& D. i" t; u! }9 w end;- G0 u% J. x( U, s& m% m3 O& m
(3) repeat + I# m# H4 h. b: F
<statement sequence1>;
3 X$ K) v0 q. \. C: `" J! [ until <condition>;7 f: e) y! \* b
(4) for <condition> to <condition> loop
8 _1 b8 F+ I/ t# }: K7 l" D- v <statement sequence1>;5 ^" F( ]4 g0 H: k9 m D- I
next;
5 m5 [$ K) c F' l0 e) r3中断语句
5 Z! p7 m8 U, X4 M9 T9 Y3 X% u waituntil <condition> prio <integer expression>;3 i- e% e$ U% }0 s
5 w2 N B7 W- m9 n% q8 P6 e
* U/ X7 n( ]$ |. [以上为常用的函数！
% \4 N) p7 Q0 n9 m; w1 s" p% W3 K* S' r还有很多，如有需要我把资料发到你邮箱里
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