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发表于 2012-11-13 08:48:12
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1判断语句- G @- f8 H" K
if <condition> then
8 h: _# e+ `: M: i( j' X3 W <statement sequence1>;: D9 J6 e- I; ~) R. _0 u' f6 q
elseif <condition> then
5 m* G. l5 [; q/ Q& ]' J: f F <statement sequence2>;
1 E" {4 ?% m4 Q1 n$ c# Z+ I5 R/ s* K else
! c4 N, }4 t6 R: O2 h <statement sequence3>;! R: |0 N+ i- O+ X* N- P! Z! L
end;$ k* e% n1 P& r8 K. ^/ A i6 H
如果分支比较多，用：
. A$ R( {; B. n% H9 w! M, p5 M( n inspect <expression>
' d" S9 t1 ~9 | when <constant_list> then3 `& F/ J$ v4 r# m
<statement sequence1>;8 {' m6 t& M" u2 J7 C
when <constant_list> then9 P- y% W* K6 N- x# [
<statement sequence2>;
( R Y6 O& Q1 X) b7 l( t ...
- P2 [" d& H0 S1 Q( P else
, q$ F+ l2 N, q% k- F7 h <statement sequence3>;
( E6 }# v% v% l. Y! R: f3 m: aend;2 K1 u" b* N3 Z1 ]: }
* |' i9 ^- ^' H1 [; O2循环语句
7 W1 w8 X, A/ i (1) from <statement sequence1>
+ f* C, s% n1 Z, E5 i( C& w" T* Z8 c until <condition> loop
' ~5 V7 B. D( ~; C1 \3 _; e; B8 h <statement sequence2>;4 g0 t1 C" D4 V2 M: o* }6 H2 z
end;
' c1 O; N0 A, K9 o (2) while <condition> loop
( L2 n: ~# d$ F3 l2 w5 K1 ~; Z <statement sequence1>;
& U* j1 d' |5 q. j end;' v2 K+ C/ u( S5 h& J
(3) repeat
" `9 Q: O$ H" t! p7 } <statement sequence1>;
8 F- D, {- f0 ~# P" N( k% n/ M2 T until <condition>;
- D3 y A( m4 ] (4) for <condition> to <condition> loop( o+ b' c# A3 U$ R
<statement sequence1>;5 y4 n% \ t1 N
next;% O8 V- R/ `, p- T+ y, D' T& N
3中断语句2 ]8 G6 X/ S% s6 X
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
1 w8 l( h/ D' \: d; y还有很多，如有需要我把资料发到你邮箱里 ' R' \- E" |0 z
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