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发表于 2012-11-13 08:48:12
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1判断语句( e) E4 G" p. _4 h+ |
if <condition> then9 E" U: n/ M. s6 P$ k
<statement sequence1>;
9 n. q. a1 q* W4 _) [. u" U elseif <condition> then
: E- B* P& y- W/ r! [ <statement sequence2>;5 ]2 R" B' M# L& f$ U4 v
else , E. Q V9 E$ ?8 {1 A6 t
<statement sequence3>;1 M# u5 g( |& m
end;6 ]% z8 @% T8 M4 v
如果分支比较多，用：1 y5 i! s5 Q. b- w+ U: q' K& ^
inspect <expression>5 d$ A( U4 g" {, e {7 n' m2 \3 [; Z
when <constant_list> then
) C/ b9 p# N7 h2 F: J2 F <statement sequence1>;+ C/ v0 u' d ~, s7 g. e7 X$ N o" Q
when <constant_list> then x% D$ x) A* n) o2 H" ^- G
<statement sequence2>;7 q& f: u: s4 h! ~# N
...
0 ^" x3 r) Q! a: B; f$ ~ else8 s+ \: H( g: G" C
<statement sequence3>;
# h1 y' |/ ^+ F; _end;
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2循环语句, k0 B% `6 w0 Z, E3 v
(1) from <statement sequence1>9 G0 E9 }, a: x. G0 k% T+ I. R
until <condition> loop5 F- Y4 M: I" I( g$ z7 ]
<statement sequence2>;
, ?2 M- R2 d1 \6 v4 C end;3 u) U0 \1 j' {
(2) while <condition> loop
( w/ P% p0 k, t* P8 z <statement sequence1>;
+ n! N) ^7 q1 [$ q5 V end;
& K* v( {% {$ U (3) repeat ' j7 O* ]9 H2 ~; \& A' k S0 ?: v
<statement sequence1>;
& z% I+ G( ~; H; {1 X6 ] until <condition>;
2 _7 A. i+ K/ i8 j R( q (4) for <condition> to <condition> loop" V4 M% x$ J- P1 t7 j
<statement sequence1>;# ?! D$ B9 g8 q. Y
next;, Q6 v8 n* Z% k- m: }, P& ]: _
3中断语句
- y) P4 B Z2 S- s# w waituntil <condition> prio <integer expression>;
% ^, j5 v/ W$ j/ ]) ^2 k( v8 ?. Q! G3 q8 a
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以上为常用的函数！
2 f2 I, b2 g) Y1 ]还有很多，如有需要我把资料发到你邮箱里
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