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发表于 2012-11-13 08:48:12
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1判断语句- p! I) D7 s' I& J4 ^3 _& h% J+ r
if <condition> then/ t' t3 I% `& `& Z, l1 M
<statement sequence1>;. p& d& l" `3 o- D1 Z4 \! A
elseif <condition> then- p" T% C! k8 \# x4 V2 M; X( |
<statement sequence2>;
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<statement sequence3>;1 S- }' _2 @( O5 w( a
end;
4 ]1 [: E& x* K& S& V如果分支比较多，用：
! I( A2 D% M; F7 H& C0 x: Q; G inspect <expression>5 @( r4 d2 U1 S2 P( ?; @4 i& f+ R5 N
when <constant_list> then: i# V7 }8 e$ h3 y+ j3 r4 Q
<statement sequence1>;
- @5 \* ?, I% d% v. ? when <constant_list> then
?7 w; m) t% ?3 y0 n4 U <statement sequence2>;8 d; G. W% j* B6 s1 G2 z% q" u
...- X4 ?4 w1 T0 S
else
) t$ q+ X# f. h9 t <statement sequence3>;
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2循环语句
+ x# B5 K# ~7 R/ h: l (1) from <statement sequence1>5 I5 s+ Y! _% a; W
until <condition> loop
6 t- e! N6 j4 B7 ^$ |5 U- u <statement sequence2>;
) _+ f: p0 B% x+ Z end;$ P- k0 G6 D5 ^9 A$ n3 N
(2) while <condition> loop
3 o @: }7 F% W, p <statement sequence1>;
2 B* k8 e0 X8 R! R$ M! k8 {. Q end;, K* {. Y' L( c2 ]7 E; N- p
(3) repeat * G9 ?4 A6 p2 k/ B9 N: a1 E
<statement sequence1>;
5 n. `4 ?( Q# T: B5 q until <condition>;
$ A: i' B! G E; E0 |& y H) | (4) for <condition> to <condition> loop
. f1 s& S9 e) D <statement sequence1>;4 O- g+ f, M5 f6 k
next;0 \% ^# w/ Q1 H/ g. p! F" s
3中断语句
9 m8 d9 z) C9 _) @) e* Y waituntil <condition> prio <integer expression>;
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5 A( k$ f- r, m5 w) V0 T7 w以上为常用的函数！
1 d+ S+ M% s1 x7 {还有很多，如有需要我把资料发到你邮箱里
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