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发表于 2012-11-13 08:48:12
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1判断语句
: K; n- I. }5 A9 I1 B if <condition> then6 Q6 e$ q q, V$ R) F
<statement sequence1>;* p& @9 p% ? e9 u7 n
elseif <condition> then
8 Q6 u k' A; X9 @" g <statement sequence2>;
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+ P3 c; t8 f$ f: W% ^ <statement sequence3>;9 W7 i2 e# j3 V' k, M7 N8 [- u
end;6 z# b! R* D1 @8 r( C5 J
如果分支比较多，用：
0 Z e. N- t% H0 q inspect <expression>6 [4 o8 W3 M& d4 P6 G# d7 ?) p* C
when <constant_list> then
~' A6 s6 U! N8 q5 D& Z <statement sequence1>;
/ p p5 M2 E" ?6 X when <constant_list> then& I' f# U) z; y
<statement sequence2>;
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else6 }8 v) h7 f. u3 T& L
<statement sequence3>;
5 Q; q8 k: y# y* B% P1 Eend;/ l5 f) ~$ Q% ]6 }5 u6 ?" y
# p1 K- x( {8 r6 b+ N2循环语句9 G( _7 J9 D; V( T, Q l/ h) i( t
(1) from <statement sequence1>% C" \' O+ _: P6 R5 ?% G* T0 N! b! e! k
until <condition> loop7 Q5 _; \. {) `$ x& H8 [- `0 g3 h
<statement sequence2>;7 I; t$ \: ~& U+ h w$ a
end;
: J+ [+ U/ r3 E% ?) @( w (2) while <condition> loop ]3 m; o& b0 G
<statement sequence1>;+ I. s2 i6 v# @ C$ w2 B
end;+ L. `5 s. K% K# J
(3) repeat / y3 U) G' y# {! a* w
<statement sequence1>;: e/ s' [+ d. O [4 w% N
until <condition>;
! H3 t# F( ~( y (4) for <condition> to <condition> loop* Q! X9 z7 B! \* F
<statement sequence1>;% T* m4 v% F6 R7 E
next;
3 D: |& h J% u9 a3中断语句
/ v! q0 W9 u9 ~2 [7 C' P. L6 k waituntil <condition> prio <integer expression>;
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以上为常用的函数！
" z! e, N& h; s% o: _' |& f还有很多，如有需要我把资料发到你邮箱里
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