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发表于 2012-11-13 08:48:12
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1判断语句& N' {$ R: Q* ^* |
if <condition> then/ k) w" i8 D9 C( H
<statement sequence1>;1 q! Y9 M$ S1 I
elseif <condition> then
7 M3 r8 o; A6 U( ` <statement sequence2>;& q) V5 y0 Z: v
else
) c: x1 K2 S( i" o <statement sequence3>;
+ {7 `4 V. O! T! d end;4 a1 v/ l, ~# k
如果分支比较多，用：
% W, Y& Z: r2 [/ ^ inspect <expression>
, b) w! k" l/ N! M, ~5 o when <constant_list> then
5 ?, m& E; ^- B& n9 H4 _: D <statement sequence1>;8 H4 O1 c9 G$ p) ]+ b) D: K
when <constant_list> then
! V- e( A' w& | <statement sequence2>;: Y' D0 v- h5 g! S
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else
. a2 k, r1 k- D5 y& g <statement sequence3>;
3 e3 S |' z: q3 Fend;
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2循环语句
4 |7 i" T5 i) ^$ Y' y- F- p (1) from <statement sequence1>) i8 I3 z6 N6 B! S( v
until <condition> loop
: S/ j. x% w" G <statement sequence2>;
: }8 `9 Y4 p! |% d end;
5 i: H& R0 w' L* Q& u, a (2) while <condition> loop1 i" ?8 }2 x1 { e
<statement sequence1>;1 u# w: T: y: o: u# Q5 X
end;2 T! H! r8 W8 z3 o
(3) repeat
( H7 i: D; s* n$ o, u. M0 M <statement sequence1>;; `' Y# E- J) A) i; R9 ^
until <condition>;# g+ W' }0 r5 r) X
(4) for <condition> to <condition> loop
/ J9 ?7 X/ _' x8 W, W: ~ <statement sequence1>;
+ e X% N, B& N8 Q4 ^ next;/ ?" _$ B8 y8 I( r* i+ z
3中断语句
' y; X6 k; z6 o" S$ } waituntil <condition> prio <integer expression>;
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以上为常用的函数！
- g0 E0 M; m9 `4 X& x! `还有很多，如有需要我把资料发到你邮箱里 + K: {7 I! p2 n
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