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发表于 2012-11-13 08:48:12
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1判断语句
! X, T/ p, @3 Z/ b1 Y if <condition> then1 ?! ^* ^* X: w+ ~& l
<statement sequence1>;
3 f8 E# l' f @( _ R" K. {. n elseif <condition> then. V# e( O8 A# P% P6 |
<statement sequence2>; W: _' N+ T( J4 a
else . z% }" V4 g9 U H! y
<statement sequence3>;; U' ~( }& U: Z& e5 R( c% d0 ?
end;7 }3 D L1 H7 d+ P& g
如果分支比较多，用：
# c/ f" H- [5 v% O/ ~ inspect <expression>
& v4 j& I! d g4 O when <constant_list> then& t. h- l' }4 a; t: |" }
<statement sequence1>;* n" f1 H3 q+ u- E# Q! G
when <constant_list> then" C3 c; G1 Q# \3 n" Z
<statement sequence2>;5 q, [/ d3 C4 D+ r6 s& Y
...) U" g# D8 i) w4 t( f' |
else
0 R; a% R" M$ ^* b$ J <statement sequence3>;4 o( S/ Y* s6 o: ]0 L y* A" M
end;
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2循环语句
% \* ~4 X( I& x6 R1 w (1) from <statement sequence1>
2 j* u& P0 D! c' N! k. w until <condition> loop! E/ E- S/ c0 w, H/ T
<statement sequence2>;1 z) J. J0 K! \6 a2 I. l+ y
end;
; R# y0 _ o: N" t" q4 r* B2 g D8 u (2) while <condition> loop
. ]( d# z3 G1 e" }& W' F <statement sequence1>;
# v2 b$ o, b) e7 V, M end;% Y& o& A. f, U4 m( w2 N
(3) repeat
4 U, P2 h ~0 r( l' U; w <statement sequence1>;* ~: K5 R$ ?% U/ P3 H& ~! k; k
until <condition>; F( g U; d( ~# d e
(4) for <condition> to <condition> loop; \6 m! F- u8 H+ b2 u; }' B
<statement sequence1>;
+ j, j( p( x* Z5 F* @* T next;
3 t) X4 Z9 L& b+ |" p% r2 k- n3中断语句
+ O* w. L. f4 q L6 q" Q6 b1 M) o waituntil <condition> prio <integer expression>;2 [# \1 E' r# {1 J
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以上为常用的函数！
( ?7 t! U* B& g还有很多，如有需要我把资料发到你邮箱里
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