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发表于 2012-11-13 08:48:12
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1判断语句. r& G) |+ [3 h% [* L2 {
if <condition> then- D4 |9 I7 j$ ~. \+ T* Z& T- K) G
<statement sequence1>;
% S' N3 i1 z, | e; q F) i elseif <condition> then
& T9 T6 ?$ {- X! E: Y <statement sequence2>;
% [1 c( ^0 U! _$ C) ~% k/ M% q; _ else
' e+ B+ _ A, g8 x: K* D <statement sequence3>;
0 X! P* ^ X+ C7 A% U+ X1 M1 W end;
+ T% J2 r7 O+ q8 W& a# g如果分支比较多，用：
. w# U2 D7 j* O3 p, j inspect <expression>
+ E8 i7 p- P$ N) X$ k, e$ ~ when <constant_list> then
4 \% ?6 l% h8 o" R) G, k, p7 Y <statement sequence1>;/ m6 l5 ~+ [& G+ N' t
when <constant_list> then5 z7 t; Q% ^; `+ r* w
<statement sequence2>;
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else1 E7 V( y/ A& `, ?, r5 j! a6 T
<statement sequence3>;
- M% ?+ P& b) pend;
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2循环语句
) L9 l9 A' c3 v0 p1 {0 m (1) from <statement sequence1>
& R1 k+ Z L* ^ until <condition> loop
I7 n2 ?9 z C- Q <statement sequence2>;
* X: |6 R' t3 O, W. g1 ~; J9 t end;& i6 w/ U" R0 h2 z' _, ?
(2) while <condition> loop5 @0 o5 k1 M4 i- } [ D; Y0 M
<statement sequence1>;
9 o' I0 j. P) o: E! U( L end;, Y9 s2 k6 i2 ~( r& K8 s9 {' k9 w
(3) repeat 1 k" r. J' C3 ]3 i4 D5 i$ d8 e
<statement sequence1>;
c* }9 p5 t; }5 B until <condition>;
1 @, R& @2 n% i8 w' F0 c (4) for <condition> to <condition> loop/ E% I4 E0 i) Z* S
<statement sequence1>;
4 d; w( B2 K: j" Y! M next;1 P3 h# g$ j! v* r$ ]) p/ Z
3中断语句9 I3 o/ f* c3 ?) C
waituntil <condition> prio <integer expression>;4 b, R$ x4 g, B/ p
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0 i$ l2 U) b6 B以上为常用的函数！4 \5 h- ?+ J- T" s' d R
还有很多，如有需要我把资料发到你邮箱里 0 }5 c4 p) Y" C# s6 |
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