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发表于 2012-11-13 08:48:12
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1判断语句
) {, f6 Y- H+ ~4 K2 p if <condition> then
+ [, _0 q! @7 s9 k+ z <statement sequence1>;4 r- m4 n$ N; }1 }2 K1 g5 S
elseif <condition> then
; i- U: o7 n- G1 g4 y <statement sequence2>;
# w, }" j( D8 B4 e else
6 {1 M& ]. N: }; {* Z6 S <statement sequence3>;) E3 W4 u" N; T, |3 x
end;
t+ f/ H7 t2 p# R# U如果分支比较多,用:
, G! `4 T. ~$ w- c! W3 S inspect <expression>. U3 h0 y8 l) u) p; x( H
when <constant_list> then: [; w0 {8 J3 y2 h
<statement sequence1>;$ w8 {* {; r* u- ?9 r, Y4 g6 f& h1 K" b
when <constant_list> then+ g+ U" G. W9 r; p# j) |
<statement sequence2>;
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else
1 S5 Q" S4 E& y. ` q$ ? <statement sequence3>;6 p# Z: @1 I: n1 k2 E
end;: X3 r( q+ u; u. z, d
9 t: }/ J/ C' x; n4 N) `2循环语句
1 f! e2 w3 T+ ^8 S* o (1) from <statement sequence1>
7 I$ f- i( g1 _. n. \" {0 d4 C) u: P! p! c until <condition> loop
6 O- s# l1 H: z- c+ S. R+ Q6 ] <statement sequence2>;
1 ~- m( y/ J" W* k3 }0 p' z end;+ S+ y& e3 L3 b" w* N9 ]
(2) while <condition> loop
2 e8 C" t$ m2 @ <statement sequence1>;
9 b: {" ~ U7 L( q! p end;$ y! `( U9 s9 [) y
(3) repeat 1 @5 z; t3 ^- a$ d1 u
<statement sequence1>;$ y5 k( C* c( h" V* m, M
until <condition>;
; x1 X; u( ]3 M; m& d g" x } (4) for <condition> to <condition> loop! K. l+ _: o8 K, \- S- X1 V+ c* k
<statement sequence1>;
, u) m( ?0 H b% Z' F next; t. G7 g7 y2 _2 P7 J
3中断语句; S+ t1 v# j4 ^! {1 M9 e$ D
waituntil <condition> prio <integer expression>;
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以上为常用的函数!! X, k9 O9 v( l6 u
还有很多,如有需要我把资料发到你邮箱里
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