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发表于 2012-11-13 08:48:12
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1判断语句0 V4 P# ?$ g2 y6 z8 \) r
if <condition> then+ q! X# l" o1 l) x, w9 J- l
<statement sequence1>;
; U/ [# D; N1 E7 }$ g elseif <condition> then) u& P7 p. g; j8 F- E3 j' f4 G+ _
<statement sequence2>;) r, S' w3 `/ Y8 O2 d$ d
else 9 Y: Z7 B; p4 p# T" {
<statement sequence3>;
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如果分支比较多，用：4 i4 \6 @' {( i
inspect <expression>
}/ M; n6 j2 i- Y when <constant_list> then
$ m5 [4 @: A' F <statement sequence1>;
; R) j& x' [( Q when <constant_list> then. P2 \1 A8 h O$ @! T7 b
<statement sequence2>;
1 Q- j3 n) S* x/ {& R q' J ...
! h9 Q( m |7 r7 x else
5 \. R' c- }8 V1 d, x9 z4 T <statement sequence3>;$ `$ `* u9 S7 y" p$ v
end;
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) N, p f$ H7 @; |3 P9 q2循环语句
: M% Y8 z7 y; V3 r- q) o: s5 s- | (1) from <statement sequence1>
4 s2 j& m( n' `2 o1 D; ? until <condition> loop0 h8 w' ~; l) F! m, x1 q4 Q
<statement sequence2>;
0 Q# t/ k1 r% [, T6 y7 t+ ~" W end;
- i5 h7 q9 W8 Z1 ]& J& a; A" k (2) while <condition> loop
% n# m! f* @; T. A <statement sequence1>;
& W9 R4 v2 I0 ? end;2 U) b7 m9 [' F! i- K
(3) repeat 0 _9 T! ?8 Q- l
<statement sequence1>;
3 L/ B1 m A1 @2 i4 T$ d until <condition>;$ p1 L" j+ n( s* j. q r' Q& f9 @
(4) for <condition> to <condition> loop) U5 O' x8 O2 @& u. [
<statement sequence1>;
& h: S+ r7 f" H9 b2 Z8 h next;
v. @- p/ K' \9 m& u3中断语句
$ B3 E% F5 p* y j waituntil <condition> prio <integer expression>;
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以上为常用的函数！
8 B, V7 m4 Z7 `% I% Z I1 v4 w还有很多，如有需要我把资料发到你邮箱里
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