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发表于 2012-11-13 08:48:12
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1判断语句% c5 h& g M0 G W
if <condition> then
% L) B$ q. L5 Q. A4 ~+ m; u1 P2 m <statement sequence1>;) ]4 I2 S9 S R1 z( ]
elseif <condition> then6 W: J O$ C2 A& X4 r8 J
<statement sequence2>;
/ m3 @0 t; P8 h6 F else 9 K4 |2 n8 \( M7 n$ [. K% R: O
<statement sequence3>;1 \3 O4 ~: O6 L5 E& s3 v+ T
end;
; ]9 L1 o" ^/ a& H/ X: _! L. V如果分支比较多，用：- A$ x( N' s9 V. V, O
inspect <expression>4 |2 d' c6 I R2 O4 M
when <constant_list> then8 Q/ Q7 X' g" w3 e
<statement sequence1>;
0 F6 i N( c0 d$ Z- |5 F0 T when <constant_list> then7 O# J7 ^6 U, ?7 H- X& h0 R
<statement sequence2>;, `+ C; k: t& X
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else
9 H: l6 @1 }7 t2 h <statement sequence3>;
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4 V' w# F4 j! g- K* ~2循环语句5 @, D, r( x1 d, s, e% N
(1) from <statement sequence1>
5 B& e+ G5 L5 z% n; O* ^9 b until <condition> loop6 K- s7 `2 ^7 {4 d' J4 N1 b7 t
<statement sequence2>;) Z8 Z. w7 u% M& d
end;# c5 ^. W. {) Q2 |' d! B
(2) while <condition> loop
9 c/ D( P$ ]( j8 { <statement sequence1>;
& a. `- s& I9 L7 F8 j+ }2 l9 S end;
) J9 T- ^6 _" E/ } (3) repeat ' P# o) h" l2 y6 u0 C
<statement sequence1>;
- N, e( J/ E0 e: b until <condition>;" y* S2 }7 \: {+ t
(4) for <condition> to <condition> loop
* f, P4 q) a) V5 F <statement sequence1>;
, r, a; H1 C" Q8 f! |! Z next;
" r2 I: z' P; N- n/ }; w! o3中断语句
, _1 Z b" M: L( Z4 v+ t: _, |4 w1 X waituntil <condition> prio <integer expression>;# e9 a8 w9 K, k J# l
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以上为常用的函数！
# c0 W% Z# _+ o; n* \还有很多，如有需要我把资料发到你邮箱里 . V. x! C& a6 L9 ?9 i- s
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