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发表于 2012-11-13 08:48:12
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1判断语句
2 [) X( p) U6 ^8 z! U9 K if <condition> then
! R& L% X d4 ?% t5 I( r& I0 M! u9 m <statement sequence1>;) D: ?8 j8 E5 K% z
elseif <condition> then& p- j, d5 O( Z# z; T
<statement sequence2>;
" ]5 p7 K& N7 z0 d2 d else " e4 E& {/ d& o
<statement sequence3>;6 Q/ `- G% R+ U9 M/ O
end;' h* q% X, l$ ~: S! o
如果分支比较多，用：
) q( Y: V' u4 h inspect <expression>
* y y$ b1 C0 Z( ^ c' r3 \! T when <constant_list> then
5 C* S4 q3 A. E- a y <statement sequence1>;
- v, b+ j0 s, A- q* W3 J. B# M/ U when <constant_list> then
( V7 D+ I/ {) r( T4 v. J9 H& Y5 v <statement sequence2>;
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else
5 \$ s: P3 |9 s6 k) ^ <statement sequence3>;
" O( {, A' M( Xend;
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2循环语句: ? o1 J o' K. {
(1) from <statement sequence1>0 f8 C! O/ r: b& d8 C2 }
until <condition> loop! a: e9 z! q! y
<statement sequence2>;, C$ d! N1 e/ G4 V3 c9 i8 {
end;$ J1 o! X* x b: `, P; h4 L! p
(2) while <condition> loop/ X4 W# d8 e- j( P
<statement sequence1>;
7 e; g( E: ` Q+ D% A end;
$ `# x; ?8 C5 n: ~3 v) f. u (3) repeat A% `" D% I+ F1 n, L1 _
<statement sequence1>;' [; f P6 R) d
until <condition>;+ n) @ f5 P+ B6 y2 V
(4) for <condition> to <condition> loop
& u, \) ]+ U5 B) a <statement sequence1>;
9 H; l+ E+ U3 G. \ next;2 `5 {5 C/ m' N; d* o" Q
3中断语句! g+ ^9 ~" Y. w
waituntil <condition> prio <integer expression>;" {" E( N, ]; x/ u% X
% k9 D l8 S8 J* u: h
4 U5 ^' u) }0 Y; d" g以上为常用的函数！
! c$ B( H( }2 O+ ]" c! `还有很多，如有需要我把资料发到你邮箱里
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