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发表于 2012-11-13 08:48:12
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1判断语句
) ^7 s: _: b0 F4 P+ j+ K8 P if <condition> then$ i4 r9 B M# l0 q3 e- Y1 O8 k
<statement sequence1>;) f& g, ?( \/ r |
elseif <condition> then
- u& u4 `- R, i2 `$ ^4 N) O <statement sequence2>;- g& W, A) Z9 `0 }& K
else . U7 Y3 k. W- q4 @8 x+ Y
<statement sequence3>;
& l2 K4 y+ u* s: C( {/ \ n+ F4 I" [ end;
* H, `2 ^5 Y) Z如果分支比较多，用：
3 j' m! e- Q: e& V ] inspect <expression>
, Y) s" i( s+ q4 a, R$ p- k; m! g2 w when <constant_list> then4 x. u4 E" Z; P& A$ K
<statement sequence1>;
/ Z5 r0 U1 _0 f3 b, k when <constant_list> then
* _5 y2 y" O, v* D$ T1 t: p# `( Q <statement sequence2>;3 @ \8 v: r- ~* Q+ E* {& E6 b: ?9 i
...3 R- } Y- ?4 U1 x4 ~) M
else% |0 x. D: f; x8 O6 h# }4 W
<statement sequence3>;
c3 M) r. S) z: x* Mend;
Q- ?0 x6 y! [1 M, F% a, K
- R" R! D. K! R; @$ N/ F x# B2循环语句" Q; n4 B% w+ j% N1 A- ^
(1) from <statement sequence1>/ @# [1 x5 g: K, b! Y9 c O
until <condition> loop
, l! z) Z7 V0 X! Y& v+ V <statement sequence2>;( v' g6 _: L: R" t' Q- c3 f- J) B
end;: t; z& }3 h2 }* S( o. N' Z' U4 t; y
(2) while <condition> loop m( M9 J7 G4 {1 e# [+ f g1 O$ t
<statement sequence1>;
9 |8 K# d6 I& |3 v end;/ ]! b) j" R% F
(3) repeat
( P' }! v" w% Z5 S' x <statement sequence1>;
# O0 t; I9 ]9 H% V5 d until <condition>;0 ^0 b/ P8 A+ E7 g+ j. p
(4) for <condition> to <condition> loop
4 E# M6 k2 v) T! l+ f" v. | <statement sequence1>;
5 |5 ^: X6 m3 [ next;
" d. K2 Q1 ^! a, c7 t3中断语句
; P% F6 _, K: B waituntil <condition> prio <integer expression>;; u9 S/ E. y( r) H! Z" p9 g+ o, Q
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以上为常用的函数！# N: V; f& x5 D( Y) {1 @
还有很多，如有需要我把资料发到你邮箱里
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