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发表于 2012-11-13 08:48:12
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1判断语句: b3 ^& l1 N1 j: R, Z
if <condition> then+ B2 [+ ^; J) S1 B
<statement sequence1>;
* N* t! A9 w# {" H; a elseif <condition> then
, A6 K% B' @+ `9 x <statement sequence2>;: w- [6 @6 N$ z
else
1 e- D* f3 ]9 K* C# C <statement sequence3>;
. z% \0 H5 C% _. ^: Y4 J end;
) L u9 q |% g: b% [/ ~如果分支比较多，用：
6 W* Q3 G [! G9 I7 H0 Z inspect <expression>
4 a: V2 G. L: D0 _+ `+ e% d when <constant_list> then. `% T0 j" O* B' e8 N
<statement sequence1>;" p" K- m8 S3 G6 Y8 C
when <constant_list> then4 ^5 O% ]: x5 @+ n9 _* S* \
<statement sequence2>;
) ]1 l, z7 S8 t8 Z0 j; F ...
9 h' K1 v3 \7 |0 c: e3 b+ k else
) ^ u; u& y# b( R <statement sequence3>;6 {3 V( q& C/ ?
end;
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2循环语句
; L7 I' C: x" s( p, h (1) from <statement sequence1>
" I. ], ^9 w2 U9 Q3 [ until <condition> loop) |& ]& l( w! y- D# w8 @
<statement sequence2>;5 I, O5 n9 M, Y- V
end;
c: W: M S3 O* \7 [) } (2) while <condition> loop
, p# B0 G& B+ I, Q <statement sequence1>;
5 o; R, O& @0 R" C0 P3 i# q end; }9 r! V4 |8 E7 ~- d& c* T; i
(3) repeat ) ~+ A% }$ Q4 N3 u& F* |
<statement sequence1>;
/ o* F9 z2 a3 @; ~, i4 P7 V& V) k& ~& j! f until <condition>;* q5 E8 p; b/ g5 K
(4) for <condition> to <condition> loop, j6 r" ~- d' a7 P, M. X* D6 o! P
<statement sequence1>;$ E R6 E; v: a+ X1 [' x7 E
next;+ q( V! q t4 S4 r4 G# k
3中断语句
; x# T+ o+ W) L7 I waituntil <condition> prio <integer expression>;' g0 @2 u# T4 r3 K2 _% ^
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以上为常用的函数！+ Y1 R" u4 M: }' Q' g, r6 F
还有很多，如有需要我把资料发到你邮箱里 - P2 Z: [$ v% c5 X7 M) W
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