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发表于 2012-11-13 08:48:12
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1判断语句. L' U2 K( r! e0 V& |6 O
if <condition> then
4 _; Z5 g- a+ a4 \8 ^7 g# D <statement sequence1>;! ], T) b. n, c8 H
elseif <condition> then' C0 [0 U6 C4 F9 W: u% T
<statement sequence2>;& c# b- B3 n1 e; Q p" Y K
else 0 r! R+ c q9 \3 @+ e
<statement sequence3>; x4 T& B2 a3 b
end;" b; ^! k: s7 h% r
如果分支比较多，用：2 |- U4 V; i5 U7 j: O
inspect <expression>" M: i4 T0 u# E W. @/ j. D
when <constant_list> then( [$ K" ^3 y/ K ?7 ?9 y, u7 _
<statement sequence1>;
: `4 ]6 A! i5 ^, } when <constant_list> then1 g) J+ P7 r7 Y; y4 I/ \
<statement sequence2>;$ c8 R5 m# E' Z( e0 ]+ Z% e! H
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else
& ]- C# y3 H& W! d4 z. v( k8 \ <statement sequence3>;7 |5 N) f `8 g6 e5 o& h5 e
end;' t7 v1 ^. F( h$ r, |4 @
w/ ~# Z9 H+ i2循环语句
, t9 m+ M! ~7 x (1) from <statement sequence1>
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<statement sequence2>;6 |6 j$ v9 x$ [$ I( v! u
end;
2 w' M/ b2 `( T. X9 a: C. I4 Q (2) while <condition> loop
" i6 F) T8 i0 j2 @9 L" ~. g <statement sequence1>;
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(3) repeat 3 H# ^( b* `: l9 M* J. U
<statement sequence1>;
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(4) for <condition> to <condition> loop
& O5 C) Y: z* S: M& I* u2 L8 j <statement sequence1>;
@, C: n4 J' I% f$ [0 e& o next;
- j: u; f% W! l3 D4 H! i6 n, V3中断语句9 ]3 ` O4 n& F6 b4 Z) ]3 [
waituntil <condition> prio <integer expression>;% v; O; I( y: U6 u2 x, Q5 {/ P5 K" U' z
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! B6 y* w. v! O* g8 S; b; F以上为常用的函数！7 F( l$ l# b! H% C( O# g! u; C) c
还有很多，如有需要我把资料发到你邮箱里 ) b+ i6 m4 k/ w
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