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发表于 2012-11-13 08:48:12
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1判断语句) Y2 F, {# r. @
if <condition> then& V+ r* h, N3 W- t* N
<statement sequence1>;8 A9 G9 g! h0 b; L) _8 k
elseif <condition> then
. M/ G; @7 c9 B+ K9 |, @1 f/ X: c f <statement sequence2>;
- ^: Z/ y2 E- b, a: k else ( A( x- |/ g) r( `3 m9 b, e
<statement sequence3>;
0 i" C; f( p! k+ o# P end;3 J2 ], O2 T( O. ~5 z
如果分支比较多，用：
6 Q; v5 j2 \9 l inspect <expression>
5 Y' w5 l7 d" a" y5 P when <constant_list> then
7 u5 C& e/ W+ E3 L <statement sequence1>;! q5 s; H. Z. v3 s; v
when <constant_list> then7 C6 u7 r( e3 @3 n2 c9 X
<statement sequence2>;: O* }7 I2 b2 i6 T! Y' x; Z" _
...
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<statement sequence3>;5 ^' m' `5 ?. I) ^
end;7 x' N7 j, u4 {% N! h8 I+ y
3 \+ U7 Y/ Z2 l) P# e2循环语句
/ y, w( Y2 }/ A( B8 }) r7 O1 A2 k- h (1) from <statement sequence1>
+ u. ] G- d I: V( R until <condition> loop/ d% a2 E. u$ p; E( _& g
<statement sequence2>;6 w& Q: s# K* \
end;- t% j0 j0 ~6 U
(2) while <condition> loop
; R/ J( w& @3 v, x6 a" s <statement sequence1>;
% `* ]2 J5 r2 j end;
3 [& \* |. p! m1 }, h$ j: Y (3) repeat
3 d% F, J0 j: k6 D3 h <statement sequence1>;
1 n( I/ W, V, \8 v5 w% S' @ until <condition>;3 R$ a) ^, i% ?! j
(4) for <condition> to <condition> loop
6 L3 k: [/ i( \; d( z! a1 e2 r8 C1 R <statement sequence1>;
' J M* X) ]: w. p next;0 U: S4 g* J9 i/ X- U3 S( R
3中断语句
t. }4 f6 Y" ~- v. W f/ N5 f waituntil <condition> prio <integer expression>;
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以上为常用的函数！: w2 v, g5 J0 q' a
还有很多，如有需要我把资料发到你邮箱里 9 ]* s3 t( _' M5 O$ K8 v9 Y w9 K: t j6 ?* C
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