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发表于 2012-11-13 08:48:12
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1判断语句
7 b- m1 d; o- P3 v- \ if <condition> then
& \% ], R" i* [9 N- p6 y6 S4 c2 M <statement sequence1>;
7 F* H D% H' J. H9 O8 K& c elseif <condition> then
' _) c* P8 ?7 C4 R1 v* l9 w7 J6 Q& @7 D <statement sequence2>;
4 x! w: u6 l5 {- O4 u( u S+ Y4 G else
$ z8 U! U0 K" }% X/ L <statement sequence3>;
# j' @! L% i/ Y# I2 v2 `. d2 A C end;2 I/ ?! q; i. B$ I* x: _& I
如果分支比较多，用：" C7 Z1 }1 ]; n; J' [
inspect <expression> J0 ]* N' A4 L. L: M% ?" D2 D( u
when <constant_list> then) |6 R7 \( b" ~ V# a
<statement sequence1>;
1 y, D5 J% x. U* ~! G7 P when <constant_list> then
, G) v! j7 v# _8 |: J7 T$ [* E <statement sequence2>;
o# T9 q: f% s ...; E' q3 j. { j7 g" X. y; \
else
8 i" v! x. y/ Y <statement sequence3>;
+ J6 z- P3 l1 F3 \end;
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/ g8 _9 l0 D- x6 j* f& ?' C2循环语句
2 k% E( `9 j `, G+ z (1) from <statement sequence1>4 n7 e3 F; @8 u" F8 p, p
until <condition> loop& T+ G' w8 E1 |7 [. n7 d: t. t
<statement sequence2>;: j+ O/ P- m4 C1 S# J! ?( R- R2 v
end;
' [) Y, A! H. h+ W6 x (2) while <condition> loop
: Q7 m. k) [% J2 c! \ <statement sequence1>;
8 w" @9 d ~# l: M, y7 n end;
# A- k, L4 P8 ~6 }$ }( m (3) repeat
, a4 K6 f( t4 I9 x7 a6 j <statement sequence1>;5 l* \2 S, O7 u' ?
until <condition>;
3 q% u7 ?$ Q4 S6 P (4) for <condition> to <condition> loop
2 E" E4 V: g F: z" \ <statement sequence1>; V$ r) [" B' }$ c0 c v a
next;
5 x& o9 h- s, A4 {- d- B3中断语句, I: F7 c0 S" E. O n3 o4 N4 X$ d
waituntil <condition> prio <integer expression>;
6 \* s/ j F0 I- K/ p
# V" x$ o- F$ v' s3 _+ i! q9 M, U2 P1 \+ s2 Z$ D/ [. p' T1 N) X
以上为常用的函数！
, A1 W1 T6 q( [7 ]还有很多，如有需要我把资料发到你邮箱里 + v' |" b* o& i/ p
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