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发表于 2012-11-13 08:48:12
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1判断语句
* m: H& s/ D5 i4 [ if <condition> then4 Q' W8 k. C$ r0 Z& J z- A
<statement sequence1>;8 L* _$ x: C1 ^$ O$ D* s
elseif <condition> then
$ L! H4 {$ k# H. h <statement sequence2>;
9 S0 l; J6 n5 Z5 y else 4 X8 y$ i; S: m: _" j: \
<statement sequence3>;/ V- F( N( _# \( H2 F5 N' Z, k
end;
, @9 ?( @0 y5 D0 ?) Q; |1 g如果分支比较多，用：
/ k# S8 g3 b' G" ?" t$ a inspect <expression>
* ~ l8 f. C" Z! ?! T0 {$ ? when <constant_list> then6 \. @2 D" T7 |# \7 Q
<statement sequence1>;8 K2 o, _& F7 k
when <constant_list> then
; i) h( S9 v8 B% h8 U. ?9 P. \ <statement sequence2>;
( S3 }7 R$ z6 S0 k% `) E# S4 B ...
, J ]7 l# X- z2 L: k9 L, A4 B else
! t: |2 d5 e* G: T0 d+ R4 C <statement sequence3>;
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6 H2 Y/ G) q1 X; Q2循环语句: a1 p3 h( T. n: w% _" [
(1) from <statement sequence1>" m9 m8 ]5 Y% j' [% J9 ^
until <condition> loop0 E: }: f) o, w: N9 @
<statement sequence2>;9 `- ^1 G1 X" l1 N
end;
' S! u/ R. g5 w) X+ x. V" t3 o (2) while <condition> loop
( U+ d; r8 G% \' L. a <statement sequence1>; }2 ?4 N2 V R( u
end;
' ~+ w: @, k5 j y( [ (3) repeat
8 D, a8 q3 O# x, @% G <statement sequence1>;
- P' N3 {; P% F until <condition>;8 W% D6 u( ]' z: c5 x6 { s+ b1 @
(4) for <condition> to <condition> loop
+ ^; k5 |( e4 e# C+ L8 P P1 W <statement sequence1>;3 Z% \/ V: a' K3 a# j
next;
9 q# V; Q8 L: n; Y! E, J& E1 m3中断语句# D1 J- J. [/ h- R" g3 k' E2 Z9 V
waituntil <condition> prio <integer expression>;0 _! F6 y, D7 @4 X/ X7 c0 X% F! ^! \
9 V, f3 z6 s" @' b* n! a/ a0 @
0 M s( ^8 g' g; I3 Z" \
以上为常用的函数！
9 x: q4 H- C2 W; y8 p/ E还有很多，如有需要我把资料发到你邮箱里
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