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发表于 2012-11-13 08:48:12
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1判断语句' J; t! h' d- | a! F' ]# S* z( }% b
if <condition> then
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elseif <condition> then0 S& L: _9 ^! Q3 R2 g2 R
<statement sequence2>;7 ]8 o3 w6 J4 q: U# o* U! p1 ~, @" `
else
; E) Y) B$ G2 B4 G# S& [: o6 _ <statement sequence3>;% [5 T- o# d4 Y7 e
end;
2 C) u; t: j' j- f- y+ J. R如果分支比较多，用：8 C% s: |& G$ v
inspect <expression>& K+ U/ s2 ~7 n, C/ v/ w8 F
when <constant_list> then- B( x, `, u7 Q7 y' y+ ?6 v
<statement sequence1>;
/ t: l" |5 \/ F4 o/ X when <constant_list> then
! C" }, D- [) C7 N2 g _ <statement sequence2>;+ r; U8 w9 n# P( Q
.../ |8 x3 J. t ]' P! w6 k' ^
else
; f6 M3 g, {2 b# z9 F: \ <statement sequence3>;9 I# N9 w$ x+ U- D8 p8 n! W- }/ J3 l
end;, y2 v* L. Z5 I
1 k3 H P) _9 Z; ?+ U2循环语句* X* E: b/ m) R6 s7 m" T( F; @
(1) from <statement sequence1>4 P9 O) S& Z7 |* ~0 x8 u: `1 C( n
until <condition> loop) H' K# v) P: b7 H
<statement sequence2>;
, g! m$ \, X7 k( E+ |8 m end;& o5 r2 b: G3 a x8 Z4 d% }
(2) while <condition> loop
" {! W1 j( k, H) V <statement sequence1>;
; f/ Q; {5 y! \& D S" |1 ^ end;
5 h, ^: N2 }, y; c0 y) i0 e (3) repeat e6 C9 g C f
<statement sequence1>;, x. L7 d* M/ i( R
until <condition>;
4 M- D& k1 }0 \6 ? {8 K$ a6 o (4) for <condition> to <condition> loop
' B1 I4 X% V) k7 `. J <statement sequence1>;, A+ l9 C; B' Z/ |
next;- m9 ~: }: _' C: |2 e" t
3中断语句% C% g3 b, y7 p! T7 d2 ^
waituntil <condition> prio <integer expression>;/ }6 E7 a# L6 M% f0 I* C
0 {1 Q7 ?5 X" s; Z8 {8 i& D, N
! P2 E* t* t2 ^& {以上为常用的函数！1 r3 @% X( P, P2 }' ^8 n* _5 F
还有很多，如有需要我把资料发到你邮箱里
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