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发表于 2012-11-13 08:48:12
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1判断语句; w, P5 f1 n* _6 l+ O
if <condition> then
% ~" ~' ^: `% j$ g1 r* Q/ l! I <statement sequence1>;
1 Q4 I$ n* J5 U/ T elseif <condition> then
; X7 W; @8 B" g5 w0 I* U+ B' N <statement sequence2>;
8 d* _' A3 U# i else / t- G. h0 ], |, D ]& X
<statement sequence3>;. }% e: e- A" t! Z
end;
7 a. J6 Z1 Y9 ^4 ]3 e如果分支比较多,用:- `9 h( M+ ^+ w; h- {3 ]* f/ F
inspect <expression>
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4 [9 Q# V4 f( d9 `/ F <statement sequence1>;; n: N% ?, S x; [" p' ^
when <constant_list> then
- O% i( N" z* r6 S <statement sequence2>;5 I8 u* w/ S! J4 d
...
7 r* Y- y2 N5 }, \& {) x else
- N8 m; q" U( C8 X) d$ z <statement sequence3>;
" H) F/ S- H- o# x* Y% S, yend;
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/ o( X e4 O* q( ?7 z2循环语句
& m2 D- `9 R/ C3 C (1) from <statement sequence1>" ~8 d W4 [9 B* T( v1 Z2 T8 X
until <condition> loop7 v! |6 v; m) z: I5 h9 j( M0 ~
<statement sequence2>;. f5 u Y: {6 {9 z9 _
end;$ ^% E. h/ x/ N
(2) while <condition> loop o7 J% V9 Z1 }9 y1 ^
<statement sequence1>;) A, ?- A% x& G# P$ h N7 q
end;0 y6 C; P" `# Q0 a5 R l
(3) repeat
/ i0 ~6 {; ?# s. n <statement sequence1>;; ?, m g% ]+ Y; U: i& T8 F
until <condition>;& a: @% O. Q" D5 L% f) S
(4) for <condition> to <condition> loop
r6 o- o1 L( _/ s <statement sequence1>;
4 t' r! R8 a. {( a. a next;) {8 v" n5 x3 [! p+ P$ C) c2 B
3中断语句6 s9 |% E$ {3 k4 z
waituntil <condition> prio <integer expression>;7 a$ Y! y. C' J! s
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以上为常用的函数!
1 B, R" F' H- t3 o还有很多,如有需要我把资料发到你邮箱里
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