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发表于 2012-11-13 08:48:12
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1判断语句0 S7 u) c+ @5 o3 i
if <condition> then o, i4 Y4 _& w1 |; E( K
<statement sequence1>;
" M3 J0 a- Q8 R- d& p u% a elseif <condition> then
( L- O# u' I8 ^4 d5 d <statement sequence2>;
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<statement sequence3>;
- B$ F8 r8 \0 p; [ end;
6 A2 `, C9 \) Y6 w; T7 @1 l如果分支比较多，用：
9 D$ T4 ?3 c8 B o* V. V+ q& I inspect <expression>* m7 d. U* |; O( ^
when <constant_list> then
9 H6 o4 y# h/ Q) u0 A" O <statement sequence1>;2 y! @- a+ H0 d" A
when <constant_list> then
% T8 b- {: E9 Z0 C& k: _ <statement sequence2>;
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else5 D0 h; L4 O$ v5 G
<statement sequence3>;- `! y5 G( d/ P9 ^8 e" t- x5 w
end;- }1 ?2 c. W4 t
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2循环语句4 L# `" K2 h7 X E4 i5 @ @/ x
(1) from <statement sequence1>
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<statement sequence2>;- F, |: i7 C9 M& f: |
end;
* G4 b* e5 l0 C7 } (2) while <condition> loop
5 x. v5 d( H+ i8 W! q- Q/ }* s <statement sequence1>; C8 x* p+ R6 Z7 D; T* [* j; U: E
end;
" M$ i- f) D; m3 g, Z& i# } (3) repeat
. T: g% d9 V( A' x! u c- N1 l& j <statement sequence1>;) Y- o8 ?1 b: O/ s& J) _5 A7 S8 j' \
until <condition>;( a& e2 }! i* Q8 D
(4) for <condition> to <condition> loop. u# U* V8 X( q% Y
<statement sequence1>;
8 u$ N1 x/ {3 z' W. M next;/ }: o( w. `+ W3 s- F5 X- x, ^
3中断语句( v& S# T5 ]+ e4 Q2 O
waituntil <condition> prio <integer expression>;
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以上为常用的函数！+ q1 I p* `% Q
还有很多，如有需要我把资料发到你邮箱里 7 S& v) l4 L5 E$ J, J$ w0 c4 a
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