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发表于 2012-11-13 08:48:12
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1判断语句! e$ V0 z& c; @7 M& b5 J5 K; H
if <condition> then( M0 o; {8 a* A9 F7 C
<statement sequence1>;
+ P8 j4 l" H# t1 g8 f" D1 D2 ?: | elseif <condition> then
. t% X+ K3 J* Q. R4 h. B2 E# z6 ^% Q <statement sequence2>;
. b! T% T6 V1 }; r1 j1 n else ( e. t; M- w. w+ l( R: D2 H/ s/ L
<statement sequence3>;
+ W- L# T; @7 f! C$ R" s end;. A1 B; G& |) s! ]
如果分支比较多，用：
u7 S1 g: V5 R2 r. h2 m$ j inspect <expression>
5 L* F3 p( e% l when <constant_list> then
' P6 d9 v. U1 V) W' f8 q <statement sequence1>;& ]/ u# x: F, p2 A2 T" s& ]; B1 W
when <constant_list> then: w2 Z) l' N! V6 {+ c0 o6 n
<statement sequence2>;
5 f# t& y; M9 v7 j- x6 B0 Y0 a ...
+ ^, s7 N/ @$ u6 `) h! v; Q; k7 @ else
2 I0 |1 Z' U1 l <statement sequence3>;
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. [2 q& ]0 g8 L
2循环语句4 B5 |+ P6 e" O. K8 R0 J) g
(1) from <statement sequence1>
+ \, B! x, ^ h until <condition> loop' ^. S; N- d: o+ C
<statement sequence2>;2 h. K+ g0 [# x
end;2 d: b# N) s# Y6 X
(2) while <condition> loop
+ w) ]0 z- r3 H0 i$ P1 _ <statement sequence1>;
6 z# }3 f* M0 R) D- K! E, g end;
! l0 [! x" [) ~+ W) ~5 S (3) repeat
/ l( }( T" m! a5 ]) j( t <statement sequence1>;: H6 q1 R! d! R( O9 b$ L
until <condition>;! q* y$ W+ `( A9 i1 b
(4) for <condition> to <condition> loop
2 i5 o5 Z D9 }) d! @7 ]2 v& U <statement sequence1>;
7 B. Y/ }/ R. e next;' |; p, d' X: D a' \6 |9 d
3中断语句" T4 F5 F+ J0 _9 W5 l7 Y
waituntil <condition> prio <integer expression>;
+ T) ~3 ~. ]4 i; M5 ~( y2 j; ?7 p2 S; T: s+ T7 _ R5 C
/ q6 \( T. m6 N& {) G以上为常用的函数！
% y2 c& L; ?- G; s1 J+ u$ H还有很多，如有需要我把资料发到你邮箱里
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