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发表于 2012-11-13 08:48:12
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1判断语句
3 C7 x6 C. B/ D1 C# ?6 K2 a if <condition> then7 a$ t7 k7 Q$ _8 E8 ]5 t
<statement sequence1>;- z+ \% k6 a9 f/ s6 Q
elseif <condition> then ^* s+ [4 g9 Q9 W) C5 R4 ]5 S
<statement sequence2>;
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<statement sequence3>;
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如果分支比较多，用：
/ a# Q% A, e! M+ j inspect <expression>
: U7 M" V4 N, D9 {+ | when <constant_list> then9 |" v/ A U, u( O! T( v* ]
<statement sequence1>;
6 w, D1 @' M& c1 N4 G; B+ ^0 l2 ` when <constant_list> then
6 Z5 C n$ d! |/ _! M/ @8 ? <statement sequence2>;
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else
$ B. S' v& h5 ^4 c# W+ l. M# x; f <statement sequence3>;/ q/ w( [9 d9 o, B
end;
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: i f C: K ~1 ]$ \2循环语句0 C% I1 V6 i' ]; }7 c8 u4 C& M2 r" x
(1) from <statement sequence1>
0 A/ x" m- {% f/ l* h! z$ _ until <condition> loop w3 h# L: H4 Q- y
<statement sequence2>; H8 }0 h, Z7 \- h5 }
end;
- z; }/ |8 ?" L* Q& A (2) while <condition> loop( a! z2 a+ e& \
<statement sequence1>;3 U3 ~( S( v, C' A% ~$ v" D
end;' U3 N0 u/ P `4 K% q R( e
(3) repeat 6 O( i/ v2 i' C0 y) ]
<statement sequence1>;
2 F6 |0 t: |/ {$ M. r) q until <condition>;
+ r2 e- D/ B* s7 U" C( I. U4 z (4) for <condition> to <condition> loop
3 i: p" n- T* h3 C( |. E, ~ <statement sequence1>;( i8 `* K/ s: N8 U; P5 w2 _; R/ C, e
next;0 f$ @4 ]% a7 }# Z
3中断语句4 a) l& W! b( {4 e8 y
waituntil <condition> prio <integer expression>;
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以上为常用的函数！+ b" X, c& d" z( U6 v9 ~
还有很多，如有需要我把资料发到你邮箱里 ' [" ?& q# a& {3 c
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