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发表于 2012-11-13 08:48:12
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1判断语句; Y t" j2 d$ ` A( G, T' K# x
if <condition> then
4 x! L, q0 l; c7 U <statement sequence1>;
7 O5 O; |3 t$ ]& N0 _& f+ n elseif <condition> then
% e' F; S8 M, y) ]( g6 ?. j7 P <statement sequence2>;
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<statement sequence3>;9 Y" D; `0 N; h
end;" c6 ], W1 h* ^- L% ~- W
如果分支比较多，用：
" W( y! @* h& _9 o6 N/ f( k inspect <expression>
1 F- R2 r3 M$ a3 h+ c* U5 K when <constant_list> then, {* g' s( m. Y- q' w
<statement sequence1>;
, P4 R% N2 a- {7 O when <constant_list> then
2 Z5 |2 H. C. M- F" C8 k8 M <statement sequence2>;! Q3 b9 F* D" n/ t
...1 B/ ]- u' y3 O2 s& F+ a5 p& l: {
else
) v+ q6 r3 H5 K/ | <statement sequence3>;# E8 O$ h9 o( C9 f: Z
end;
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2循环语句9 ~; X" v. g2 b4 o* O: l$ d
(1) from <statement sequence1>
4 z( X/ |7 B' U0 `2 V/ ^ until <condition> loop9 T* q- o! l0 e* W, ^ y
<statement sequence2>;# Z% t9 q2 ?! }& v& O+ C: p1 X
end;
+ J8 l! p& u( E, b2 ^( u+ z3 t: B" B (2) while <condition> loop
! V3 G/ `8 o5 I+ A <statement sequence1>;* q3 m: V2 J6 l3 A, l9 K
end;( z7 _: h* _8 r( N4 {
(3) repeat ) v' A7 h8 b: J% J! e# S, y
<statement sequence1>; W& f8 E; ]: @1 i5 |+ f, s
until <condition>;. R, Q, A u5 V) V2 G$ D4 {; K/ {( |
(4) for <condition> to <condition> loop3 g4 ^1 ?7 E. ~( D; L' h
<statement sequence1>;
8 ]! \0 O% p, A' U7 y next;
3 d( {3 T# o' [$ o4 q" i3中断语句
8 D+ S: S6 R0 Q. L6 ?3 m waituntil <condition> prio <integer expression>;1 J' ~5 v( S% @2 a" Z# J
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以上为常用的函数！
% B* T4 e) O# Q% E还有很多，如有需要我把资料发到你邮箱里 . O7 x c! ^7 @( J# k# ]
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