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发表于 2012-11-13 08:48:12
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1判断语句
. I% X" I$ T" m) V8 R6 I7 J$ L if <condition> then, m* d5 e8 `$ _1 r/ A x
<statement sequence1>;
' Y+ U0 @: X3 K* R, P7 G) B elseif <condition> then
# Z# D/ f2 L2 Z, q <statement sequence2>;
9 L! V7 ~ {4 i) U else
* V* Z5 c6 Q8 N" T6 {% R U <statement sequence3>;! g$ X( t: [0 e. Y6 ~
end;" t9 k, x4 {5 `) a
如果分支比较多，用：
) K" d8 G) R7 Q inspect <expression>8 ~2 E: ]6 q: q, [2 H8 W
when <constant_list> then* O' r$ n" ]& u7 I! a1 m b7 }3 u
<statement sequence1>;
5 f9 U; Z. w7 {2 F+ L) g3 ]0 ^ when <constant_list> then1 l1 y1 P1 h5 t3 M6 |, \# Q
<statement sequence2>;( t0 d- j4 V2 d, Y7 Q
...
& z; B! E! }1 x else% j1 t/ X* s! e
<statement sequence3>;
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2循环语句( n% F$ R. A) P7 q- Q
(1) from <statement sequence1>, x- N. p# `# e- b- d
until <condition> loop
+ s8 k" D* k; ~" {% A8 s& ? <statement sequence2>;
% ?4 @" H& R! j' Q) x' l( O end;
" L9 \9 ]9 O7 \7 \8 R( }) q (2) while <condition> loop- E. i# v9 N9 `1 A: N+ n, E
<statement sequence1>;
& p4 \8 P% k9 x: ]* ]) u6 q end;- O7 o* W2 n/ E7 u4 f. c0 n
(3) repeat
9 U" A/ j7 Q% P <statement sequence1>;
6 A& h# ]& z2 E until <condition>;
6 q# _, a4 Q. |) I8 M# ?5 @0 ]& k q1 e (4) for <condition> to <condition> loop+ [8 w) K/ ~# N- j9 z) T
<statement sequence1>;; u1 O+ B; l; I9 Z2 x6 H
next;
9 H E8 S2 E% V+ c, t. o3中断语句 C$ |' H9 h2 ~6 R* `% _& t( f- f
waituntil <condition> prio <integer expression>;' q3 C$ H5 v" o {& ]/ Z7 G
2 S4 c, B% c% u M0 Q7 G, a ^
4 @3 h1 L; S$ X K5 S5 N' g以上为常用的函数！
% R% x# m$ ]4 h3 h+ e+ n, d; _还有很多，如有需要我把资料发到你邮箱里 * Y0 `; m* }( E* g2 {) K
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