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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
" e6 P& ]$ u- O* ~! p. e9 \ if <condition> then
/ C7 x: {( e% `! E: f <statement sequence1>;
J. q5 _9 V' g$ f7 w elseif <condition> then
2 ?- t- h% c5 H$ s <statement sequence2>;
$ J4 o1 f. z7 U: w( y5 `* U else " ?6 n0 @0 ]2 s0 K2 ^! O
<statement sequence3>;/ }2 P ?' v( J3 a$ d
end;" g. A" V' q2 [. u0 G3 J: ^( K! f
如果分支比较多，用：
0 B' Q6 U) N u7 H4 t* j) A( T inspect <expression>" |( ~6 V5 d9 r" j/ A
when <constant_list> then
1 W* h* J) o4 f: I <statement sequence1>;
/ Z' o: t4 o1 z when <constant_list> then
% \* F0 g# ^( ~5 ?$ ?2 K <statement sequence2>;) V0 p; b6 D" h3 c! ^0 J2 z
...
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<statement sequence3>;9 B7 A# K! e( d! y) b2 l/ U
end;
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2循环语句4 O: t. O9 R4 L( a$ m; Y
(1) from <statement sequence1>2 Q K0 h6 s6 _" n8 x% ?0 U2 \
until <condition> loop$ r5 m0 y' v5 I5 [$ f
<statement sequence2>;: r. ^5 g& T; A9 U
end;
0 G3 i. |# b7 I8 H (2) while <condition> loop
8 b/ ], H5 {2 N8 ~ <statement sequence1>;
( |- j' `$ S# N3 r: L, d end;
! a% N9 Q* S' ~: q (3) repeat 8 v( r# T& m$ Z( L+ A, Z% i3 Y
<statement sequence1>;
( C4 p9 F% o! e& h+ X+ Q8 x until <condition>;6 F2 @0 P7 b( [- S5 a
(4) for <condition> to <condition> loop5 d: q$ K- }1 J: h
<statement sequence1>;
( i* r& |, t2 y7 P) `/ i next;
( H- E7 O) G& I$ K3中断语句
6 ~# T4 k. O) S* L# Y& Q waituntil <condition> prio <integer expression>;
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. `! \0 s5 F M% d* T1 ~9 ~以上为常用的函数！
* ^! [4 E2 s5 w$ v* V2 ]还有很多，如有需要我把资料发到你邮箱里 - R1 u( ^$ P0 U9 {
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