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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
" w, L( {2 S# t/ `! w if <condition> then+ T( m! ?# n# M+ |# q
<statement sequence1>;( Y" c6 F0 I; z
elseif <condition> then+ ^' G7 d: r/ C+ [' }6 {0 H1 q- {
<statement sequence2>;2 e% k7 ^ U! K, L6 J y
else # q1 X _" y, ?
<statement sequence3>;3 b: x1 B2 K3 ]0 j3 S6 p
end;
& i& U. \/ s) V2 l# d4 B如果分支比较多，用：/ o2 s( z) k) q' c2 A
inspect <expression>
) Q0 U% ~: |: {# r! _" b when <constant_list> then, {* d+ J. H7 v$ I4 h
<statement sequence1>;# r8 F' ~6 ^2 `2 W: `3 A3 _% b
when <constant_list> then
/ P: g3 @' S4 V6 j/ s" ] <statement sequence2>;
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else
0 N+ F3 `6 z2 B) { <statement sequence3>;
# }. h! B4 j) B0 ^. r' ~- E w$ }end;2 k% @% w4 V% E& c2 x" P
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2循环语句4 ~. b3 S) @1 Z. [' Y% ]7 h
(1) from <statement sequence1>
$ m# O2 v1 y/ `& c9 H) @ until <condition> loop
6 ? z" ~( ~: h b$ q$ U6 l <statement sequence2>; |/ g( D# n8 w3 M: y
end;
; }4 i# F! n3 P( z (2) while <condition> loop1 r8 U/ }/ c- s7 V: A" h
<statement sequence1>;( e5 V. e; c, C% d
end;
9 u; w# I6 l+ u B7 k (3) repeat
3 O5 |3 S y9 a& D$ F: M7 r <statement sequence1>;; A8 K5 L% r! q0 T; k5 x
until <condition>;8 A8 f& \# n8 \5 l2 U$ M. \
(4) for <condition> to <condition> loop8 c+ G# U. m6 a2 ~
<statement sequence1>; |$ x( J. H+ k9 z+ v( Z
next;- j) Y5 j1 F; s D g
3中断语句+ o9 Q* f; l! b1 g3 [+ t. Y3 d
waituntil <condition> prio <integer expression>;
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以上为常用的函数！3 ~- D1 Y8 R7 E5 Q
还有很多，如有需要我把资料发到你邮箱里
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