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发表于 2012-11-13 08:48:12
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1判断语句2 |7 v! g: s/ z6 z$ m3 [1 F6 L
if <condition> then
, p; T' n3 C! k3 t <statement sequence1>;
3 ~7 S% z1 G# A+ `) ? elseif <condition> then
: b# r9 y6 |. m <statement sequence2>;
( n5 I9 b9 J8 c# | else * B0 \$ B- I* c1 B8 U1 O/ A
<statement sequence3>;6 j8 r6 E) j: B
end;5 B( D- C+ N, Y' I2 c: c
如果分支比较多，用：' V- E) I4 a) g1 z) e7 g
inspect <expression>' w$ e1 J, n. w3 J1 y8 ]- S
when <constant_list> then
2 ^5 {5 M, i0 I! h <statement sequence1>;
9 ?3 x8 p; |5 A. `9 ~* v7 f8 z when <constant_list> then
$ N0 \) c& a, N) l, x; D$ U* G <statement sequence2>;
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else
2 T4 y( E0 z" @0 C" [9 p <statement sequence3>;
" J* i6 G& u: `! o. ^! Gend;9 G' ], ]) X5 R
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2循环语句
- W" [" h' y4 `3 H5 [1 E (1) from <statement sequence1>( L2 p) b" M' o @0 E o! X
until <condition> loop
: X8 H1 e. S# F1 C( E <statement sequence2>; o' A; L5 L0 n% |: t
end;% ~& T6 U, Q$ ?3 q/ }& b5 F
(2) while <condition> loop
: F) f" w' S% d# U8 f; M <statement sequence1>;) W4 }$ C! h( x
end;0 c% r+ v/ h: I7 b) ^: D
(3) repeat
; s, S3 Y6 x( |- T <statement sequence1>; h0 \$ x7 ?( @4 T8 s% Y) b
until <condition>;
/ p2 s2 v( I6 n; \0 P (4) for <condition> to <condition> loop
$ _. S3 u3 w" `' z) O! i6 L <statement sequence1>;
0 V0 j0 M9 u9 E v' t next;
% Z& n* I- _, U# ]3中断语句
$ e, |8 ~2 y4 i% R waituntil <condition> prio <integer expression>;3 }! n, L2 l+ ^: S% G6 ?8 h
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以上为常用的函数！
/ [3 K2 X5 p- C& O还有很多，如有需要我把资料发到你邮箱里 " m. g) [! ~# s. O2 k% w
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