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发表于 2012-11-13 08:48:12
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1判断语句
1 g* E# ^! ~+ M) v. O/ S& U if <condition> then% c7 I6 S L' M7 E* h
<statement sequence1>;
: ]$ ?4 U% f) m9 U elseif <condition> then
* W% i3 V& A0 C/ ^8 j- z <statement sequence2>;2 ? I4 \+ X1 u t: Z# _% `# E
else & ]/ N: H' {* F" S0 s- r4 t
<statement sequence3>;* d/ K5 W# b3 G+ W( {
end;, S% }) E/ A' w4 Z, h
如果分支比较多，用：
2 H; h6 ?2 Z0 n9 s inspect <expression>/ j( b4 t! R; D! }+ ]0 w( Z% S: m
when <constant_list> then! \ G# V' j. i- P- A
<statement sequence1>;; N1 x- P3 A% r' L4 \( n+ ]
when <constant_list> then# T2 ?6 ]' z8 {7 X* d% R
<statement sequence2>;; k P( f+ c3 C, P
...3 t1 N! ]" \( T. @1 _; ^. Q
else) K& a" ? w2 U: d6 {" q' {6 Q
<statement sequence3>;) X; Y- D8 L0 h% j
end;
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R( [8 M$ D* s2循环语句5 T* [; C) g- l8 v, t+ R) C8 S
(1) from <statement sequence1>+ n8 V, e& ~, \, }* z
until <condition> loop
6 V9 k9 B% ^. o/ @! e: S <statement sequence2>;
9 _3 T8 {- S* [$ {- W! `/ D end;
( L, q6 `+ E$ C" J' h2 f3 ~8 `* M5 J (2) while <condition> loop0 G5 B) f! X7 p1 o! d( c: j% u; W
<statement sequence1>;1 r( [0 G! t$ C8 C
end;
; z- [) h4 u3 a! X3 `0 ] (3) repeat / T( h7 r C$ Y7 a4 K8 u' I
<statement sequence1>;
3 Y( }0 o) r: Q" \, J* ] until <condition>;/ q8 r3 z$ m ?
(4) for <condition> to <condition> loop# P3 m' @. B% t
<statement sequence1>;; y) G8 x" e6 p4 m( ?, k) y% ~
next;
8 t: ]# s% ?2 q' U% X1 t8 q3中断语句% b) K8 C5 G2 ~: H9 S7 @
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
+ y ^* E# ?. p3 i还有很多，如有需要我把资料发到你邮箱里
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