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发表于 2012-11-13 08:48:12
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1判断语句
6 T; {( M6 N5 N: m$ k if <condition> then p( j6 t$ `; G# J) n
<statement sequence1>;( w5 [) ]: I* E3 ]6 T" n7 I$ b
elseif <condition> then- p* j. X3 d, I
<statement sequence2>; @# h) j# k/ C! g7 Y6 I" H
else & _3 M& a* s0 m% z% E+ u
<statement sequence3>;
0 @7 p7 `4 }) \( B9 O) g2 ~ end;
" L. h3 p8 n( ]. |如果分支比较多，用：
5 O1 j H4 W( V4 ~- i inspect <expression>
! D! F3 _7 g; {. U& P( T& H4 \$ J1 Z when <constant_list> then
0 i4 n l" H2 q <statement sequence1>;# l7 u' Y. U; q+ R! c9 L6 P) W
when <constant_list> then
- \2 q; x5 ]! L/ m+ f" R1 h! i4 C <statement sequence2>;
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<statement sequence3>;
) V2 P8 b! y* ?9 s& tend;
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2循环语句6 x. h4 I4 v9 Z7 T. n
(1) from <statement sequence1>. E9 g6 V' n2 X* @ |
until <condition> loop
% D1 f' c% C% `6 U7 ~ <statement sequence2>;; x( R; A# ?- f, v
end;
5 O% [$ e: p% C: a (2) while <condition> loop5 x* d+ s$ D! c& W4 u
<statement sequence1>;4 w9 Y% V% R1 M% c/ a) Y
end;
9 J) S. q# }6 [/ P1 U, w (3) repeat
" k6 P/ Q" d/ a9 I0 H, g3 Y <statement sequence1>;" L' d( n2 ]/ Y7 m* `1 `
until <condition>;
- h0 T. h% x: n, {. ]9 r( [ (4) for <condition> to <condition> loop- s7 ~ }4 m3 D# v0 l
<statement sequence1>;
; w/ e* z- y( H4 I* q next;
6 j; F Y; z9 p1 G3中断语句3 N. N/ \" m: V4 {
waituntil <condition> prio <integer expression>;
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以上为常用的函数！6 U. w9 H q$ k! G) K0 d- V
还有很多，如有需要我把资料发到你邮箱里
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