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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0 G5 U2 R5 n, Y3 {- r$ z
if <condition> then' a( f0 ^: L7 m5 b6 Q
<statement sequence1>;
" |/ Y0 P" C1 Q. W! |3 z elseif <condition> then
: s9 b% u7 R1 r- H- m4 N' G <statement sequence2>;
$ m( L U: p/ Q c- B6 Q& u" E else
* Y2 Y T3 x' U1 e* @+ X, G9 U <statement sequence3>;% u! ]6 ^; |; l0 l
end;
6 W! P& E9 ?; c! J5 y- \如果分支比较多，用：1 a" T/ {+ a1 B* ?) T, F* A+ |
inspect <expression>
+ T6 S+ ^2 E3 ]) A8 X- y8 W' }. _ when <constant_list> then! ^- y% W% A: S, `3 `! o( |
<statement sequence1>;3 m8 l1 a, }) F5 [5 ]$ g( j0 N
when <constant_list> then. I) N' w$ y$ ^) [. i
<statement sequence2>;; [7 }! ^' l/ V# _) M. w# }
...
8 n, ~- z& _* J$ H/ S; P else
6 x3 U' D+ j" V' Q6 Z9 z# D <statement sequence3>;
1 e% k$ P& v" n8 t5 ^# _; cend;
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7 ?( [: [& y0 I3 q& o4 G2循环语句
Z+ q% X4 |# k* b- x2 H0 ] (1) from <statement sequence1>" z* h& I/ M1 i, m+ f, ]
until <condition> loop
6 e' { g. W1 v <statement sequence2>;/ E) t8 d I, [) E0 [# }
end; n& s4 @$ _( C9 m- R
(2) while <condition> loop
8 J& N5 S9 N4 Y) S$ l1 _4 N* v <statement sequence1>;) ?, Q+ Y2 _2 t: v7 r9 ^3 J; L8 U
end;% p; D4 w' O3 h' g7 y
(3) repeat
r- Q6 L# i4 L% r$ _+ S, |4 ^ <statement sequence1>;: a0 R1 e1 Z; E) ^6 W. E: I2 E
until <condition>;% p' c( ~; B0 l
(4) for <condition> to <condition> loop
Y+ E5 e8 j0 K( d% n V <statement sequence1>;) c, ~3 D' q. k( H! G
next;
# y( S' w. b9 R! H3中断语句+ F+ y# V( a1 D3 ~
waituntil <condition> prio <integer expression>;
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+ F% b. p+ ^6 e" I以上为常用的函数！) `2 q# h6 h/ P2 o, Y" Q
还有很多，如有需要我把资料发到你邮箱里
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