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发表于 2012-11-13 08:48:12
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1判断语句
0 d l- a8 L( J/ r if <condition> then
! g7 N( O8 e: S& M <statement sequence1>;
9 ]( E. J" S/ F7 s/ r) f$ Q/ g elseif <condition> then
7 b/ s3 K1 R; G3 _8 c <statement sequence2>;# G; u. q' s% i
else ( u; H, Y& n6 G7 S
<statement sequence3>; m; y9 m* G8 }$ |7 e
end;
; O, k/ k# g2 T如果分支比较多，用：0 x, S p0 s4 V; m$ t6 ~
inspect <expression>
7 |& T: O# G' D5 o when <constant_list> then
- C7 Q+ |0 `: {; Q6 N <statement sequence1>;( ^! u. T. q. ]# o
when <constant_list> then
' c" t$ A% y/ e& y" I <statement sequence2>;
/ P! U. Q8 w* a; p3 y ...
/ t" i6 b0 Q' M z* q else
0 B! u+ q$ j6 I% G. x- n* m4 L) \ <statement sequence3>;8 V8 ^! | u/ R. r2 N6 h/ P
end;6 Z& ~+ X h+ e* A) o' ?
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2循环语句
! v' e2 A3 h9 m) X1 \ (1) from <statement sequence1>7 j) n& F) J- G, w- c6 Q) {8 F
until <condition> loop) a6 u8 O7 m+ U+ v' p' I9 ^' X7 x2 u
<statement sequence2>;1 B& m y+ F0 S; M
end;
5 v. g2 R8 Y+ b P) y; f& Z0 @ (2) while <condition> loop, d. V+ d6 k8 @0 d! L
<statement sequence1>;% u% S+ t b$ s. g: F
end;- | t1 A& _6 f( }0 c
(3) repeat
3 @ a$ |" M, n6 g( s( O <statement sequence1>;
3 p7 ]# \& q, a* C until <condition>;
( ?' o5 k9 d8 T" j$ m" ?3 \' H (4) for <condition> to <condition> loop- \" M g/ Z# D1 P2 e4 U: q
<statement sequence1>;
: t5 a5 y; Z$ h. ? next;. z: O3 ?, r. I- F; \8 d
3中断语句0 k4 t ^! E( {+ v9 Q2 a9 K
waituntil <condition> prio <integer expression>;6 k; |! o6 h V
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以上为常用的函数！
! v( K1 J, i. q9 U- J还有很多，如有需要我把资料发到你邮箱里 3 v& m! V9 V! |1 M6 N* x
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