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发表于 2012-11-13 08:48:12
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1判断语句
# b' h' C" v& {/ P2 m* D if <condition> then
8 g% D% @8 E/ F9 D <statement sequence1>;
0 }5 ]1 g& a& t5 ~' v% J elseif <condition> then z, ~# P: G+ Q2 }3 P G; l( ?
<statement sequence2>;
4 J$ e& m! j8 D else
+ t8 ^ F9 b M7 Y! E/ ~/ d9 U4 ^ <statement sequence3>;
( K/ o. O6 {8 i4 F- t; ~ end;; s- J- Z, l" q+ a
如果分支比较多，用：
$ m% x! }& s2 w0 r: C( d inspect <expression>
7 \4 r( o' r% T1 _. T when <constant_list> then/ O7 p: n* B. r: e* d' V
<statement sequence1>;
' V8 X: r+ B: Q0 I& | when <constant_list> then+ `* P% G" q1 d3 G# E( Z4 \+ w
<statement sequence2>;
) }" N" B- d+ a: V. i7 p0 y .../ n& Z' x& _0 W
else
( A: d1 O2 a/ m3 } <statement sequence3>;7 m6 f4 z+ L5 X H9 I6 \
end;
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b! g: q3 O' w- j$ x5 r2循环语句
# R3 z& _/ A7 K# q6 b9 E (1) from <statement sequence1>
! k6 S: A, U0 V# h until <condition> loop! ?: |2 M* W& m8 }' n0 C
<statement sequence2>;% V4 ~7 z4 C# f7 t: F' {$ Q
end;
! B' A" j+ E/ ^5 F9 k (2) while <condition> loop7 d. a& S Z% ?8 w* G3 H+ g
<statement sequence1>;
4 N$ e, g8 |" L& [" o% Y) p* w end;( S: |0 Y( T) ? S, E' y
(3) repeat
( W! B- c3 [& {0 F4 w1 j7 o) i <statement sequence1>;
: B- Q8 d7 s- O& N. d8 M9 R) t until <condition>;
+ U& D: ]5 s! w( W; B. ^ (4) for <condition> to <condition> loop2 l) W3 H K' z7 [/ D9 { f
<statement sequence1>;
3 W! u/ q& \6 w% r5 i, v o+ i next;4 W1 V7 _4 j' v F
3中断语句
4 |/ c( ^+ ?* s6 {* `% m waituntil <condition> prio <integer expression>;
! }# R2 K1 u4 k& O$ `/ T$ s1 l) j; h1 j) r4 T; e; d$ x
* C; @ K8 E& o- G
以上为常用的函数！
- L6 ^6 I& u( v: n$ B还有很多，如有需要我把资料发到你邮箱里 , l ^7 p! x$ ?5 G
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