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发表于 2012-11-13 08:48:12
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1判断语句5 J" Y& ]2 _% m) v
if <condition> then
4 g) Q1 a% ~ {7 P <statement sequence1>;
! i. N8 V$ x' O+ X: k; ^7 S9 n elseif <condition> then
- l1 [ i4 ?: L, L8 G; A: Q9 T <statement sequence2>;4 Z( V* }! U' ^. m0 w0 ?
else
. N" E9 t: S: | z <statement sequence3>;& O! Q; }+ b- s5 n
end;
$ E6 ^, ]- m$ G/ n1 B如果分支比较多，用：( v+ k% J' E- H b( O% @4 d. d( H/ C
inspect <expression>* @) i! \3 `$ T; B
when <constant_list> then0 ]5 @9 U2 Y6 E( z, v. M
<statement sequence1>;
f0 J7 j. `+ ]; c0 \. d when <constant_list> then
8 T* f- e0 r! N. ?2 Z9 C1 U+ E <statement sequence2>;
% `* p+ Q4 [9 U: ^ ...
# F: e1 o! b2 \3 G1 K J else- T" R6 [- ], z k+ ^6 M, m
<statement sequence3>;4 ~/ p# m2 J" B6 {# }6 v7 i! p* O
end;
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2循环语句/ E# d Z& F) a0 {9 U, O' ~. M3 s9 |
(1) from <statement sequence1>
- |/ s/ J4 d t+ X% x( D until <condition> loop
& F3 N1 ^% i0 a* C; c; c; R <statement sequence2>;
* _3 a5 V" j' D( y2 Q end;
$ {9 z4 M7 k5 ^& l5 j3 `- q (2) while <condition> loop
D2 h) J% Q; J( \( | <statement sequence1>;
. ^( H+ {3 u3 Y. M" r* \) ^0 [; U end;
/ ]$ _+ \6 A! J0 B" m$ y! Q (3) repeat 2 p( w* L3 h. W
<statement sequence1>;+ i8 }* _0 L" l, f
until <condition>;0 [5 l; P8 m5 p! |" w" h
(4) for <condition> to <condition> loop3 o! G" X4 r% N; ^; H) @- }
<statement sequence1>;6 A% @. R6 a1 } u2 q& h9 M
next;# g7 I, I/ K- e8 V; X/ \, ^" \" N
3中断语句
" Y. _4 X* |9 V waituntil <condition> prio <integer expression>;' W* s8 n. h$ R6 T& [ X d6 [
# a5 ]2 Q& W: ?& |& |! D0 F+ `
3 Q1 ^' z/ U* [, S: a0 \2 C. [以上为常用的函数！2 A9 p. c& k. q
还有很多，如有需要我把资料发到你邮箱里 & P% `6 d9 c2 \7 n. H' g, D
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W+ F; S' D& h, R% n% @7 h& ?
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