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发表于 2012-11-13 08:48:12
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1判断语句) W2 V' Z# ^9 J$ J& s8 v$ y' u
if <condition> then
' I& w) `. b: C: u( X! T <statement sequence1>;
! \" \) m+ V5 i4 C5 n elseif <condition> then
. u0 F/ ?% k# }/ u: }6 |0 W <statement sequence2>;
( B1 |: h0 h' c* J* V% \ else
. l' K6 R& y" v, }, Z <statement sequence3>;
! q0 c2 ^4 ~2 P% u end;( ^( U& i) m9 o3 V1 K* j
如果分支比较多，用：
& P( P' J4 P7 E% S inspect <expression>5 q; m( O+ n) C, M
when <constant_list> then4 Y% R( G) M. n6 Y
<statement sequence1>;/ U3 G' D& s8 c% r
when <constant_list> then
5 `5 w! x* v9 B/ L) z7 Q <statement sequence2>;
) N, V5 o$ R+ q ...
/ E/ K$ j9 _; u: u8 u2 ]% U else; s } t* e7 m8 \) R9 e, O7 t3 N
<statement sequence3>;
- t0 U' j8 q! P; e, }end;1 O- Y: o& g7 M4 R, Q
% w' f0 b" x2 t2 o4 Z3 e1 _" v2循环语句: n; D/ \3 i: b& c" N. J, X
(1) from <statement sequence1>9 U0 A7 Z* g- y9 ^5 H; n. D
until <condition> loop
, A1 \+ L$ f* G+ I8 r, { [ <statement sequence2>;! x) t7 O0 y& a1 C3 m2 t
end;
5 z. S# H8 E+ b+ Y% w" u- C (2) while <condition> loop
7 N! D/ Q& a. a4 [2 y i <statement sequence1>;! C& Y, ?; o ^2 ]+ s
end;3 b: n' ?1 X7 X2 u) j/ b3 z7 b
(3) repeat
: @2 R7 W% i1 O$ H% u6 p <statement sequence1>;
7 Q9 O( R9 L, G+ P until <condition>;
1 _4 _! a6 _8 ~; R (4) for <condition> to <condition> loop
) n1 @$ H; ^3 R! q0 k <statement sequence1>;
7 X3 v8 L6 j0 y R! n3 B next;
$ x3 K2 g2 e- ]3中断语句
, P$ F3 A* `& p waituntil <condition> prio <integer expression>;* b% F' C; E/ t
# f5 `2 m5 J; `2 u+ M5 L, F+ h2 }& W) I; d" s/ A: u2 \! z
以上为常用的函数！
C- t W: p% B6 J还有很多，如有需要我把资料发到你邮箱里 . r8 x. W5 D$ y! Q, ^. h
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