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发表于 2012-11-13 08:48:12
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1判断语句 O; _* d) C" x# c: h4 K" r9 w
if <condition> then
8 B8 t+ S# A4 P* n+ n <statement sequence1>;
* j0 B) F# A& m- b& n5 `2 e elseif <condition> then" M* v ~& P4 S: G$ B( `
<statement sequence2>; ^- ~5 h' N1 v# [) ?( w1 [9 ]
else C) M! p/ }7 _
<statement sequence3>;
8 e5 r' V$ x! l+ W2 h end;6 q8 a+ H3 l: Y- I
如果分支比较多，用：
- Z0 N ?5 g, V$ I2 q. U; w, J inspect <expression>
( h6 n E8 g2 s. z* `( Q' ^ when <constant_list> then: n; C- _7 i/ a' a. [0 @ Z
<statement sequence1>;
, U. g9 M3 S7 a% ?' P/ | when <constant_list> then: c* A& z0 A: ~4 p( q
<statement sequence2>;
( \% E! P8 z' C/ Z6 }5 S) O ^ ...% F! U j7 C' X
else
& R( @0 p0 n+ [ <statement sequence3>;
2 _9 i* G$ D1 L5 Jend;# `; w0 c+ r$ Y
, ]0 c! s, w+ M2循环语句9 S4 k' `. O' Z. s0 u5 Z! q9 U
(1) from <statement sequence1>
0 l$ r( m" S7 i" G until <condition> loop
' ]6 Z4 j+ V0 g: [* p v <statement sequence2>;
( z) ]6 y# A! E3 f" ^- [* e end;
) A, L0 o, E3 t# q2 F/ U (2) while <condition> loop
$ v& r+ {) b: X, ^ J <statement sequence1>;7 u& Y1 {: Z5 B- N2 \2 a& F% }
end;
: R. `# q) v# \; c' q$ a3 C0 y (3) repeat
. J. k0 G. {% `2 j( Q7 Y <statement sequence1>;
! A D. _+ K, \8 A" Q$ _ until <condition>;, W! N+ `. k9 @; v& Z" l, Z2 M+ [
(4) for <condition> to <condition> loop f; w1 o8 `5 C% ?: a
<statement sequence1>;6 U1 o+ H. i" w7 s1 U! Y0 j
next;/ b7 k, M8 P p
3中断语句
! v) Z4 f6 C: N, l4 i" x: U waituntil <condition> prio <integer expression>;
- _8 G1 C6 F0 @9 s) I/ p! v7 Q5 q
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以上为常用的函数！) | d* V* B. S3 p5 z" p0 v
还有很多，如有需要我把资料发到你邮箱里 " Q5 [+ |1 M3 S. n( _1 y; h4 @
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