|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句3 D6 _! O: V! _8 t
if <condition> then6 u8 r7 K( c5 n1 I
<statement sequence1>;! n' N9 j8 m0 t% M+ C: u. i$ T# Q1 W
elseif <condition> then* v6 F& f3 H5 x/ V. g' u# l4 p% r
<statement sequence2>;
9 y! Y: k) `( \' N else
; e" k6 |5 Y1 s; m% M# a( t <statement sequence3>;! p1 ^8 {" d ?5 G6 g
end;
) P& l( z3 V3 v/ v( P, [7 s6 n如果分支比较多,用:, H. ^* M V% T3 L4 T! B
inspect <expression>
, g. o. J |+ d9 A6 B- T. K, ~0 s1 _! } when <constant_list> then* }; P: M% Y/ f# j2 x8 [
<statement sequence1>;
7 f1 ]* Z' O$ \# Z8 j' B when <constant_list> then! X/ n! b' ~6 L9 ?
<statement sequence2>;
: {5 ]* w1 b2 M0 E6 C5 [ ...+ h( t3 I" T/ e6 D) K! A, v
else8 v( a6 T. `+ k0 Y' i9 E4 e( Z# P
<statement sequence3>;
$ ?$ L- i# {! u( g- U( Wend;4 [( A5 \8 o0 A
Z* m* z0 f& q& I: X
2循环语句+ Q2 Z' x3 ]. _& N1 Y5 S' z5 B2 ]
(1) from <statement sequence1>9 }- d$ e, o9 t1 M5 J, U
until <condition> loop6 s) I. L2 {& w6 V1 `, X' z
<statement sequence2>;
5 g+ g' j! t4 P0 o- Z2 m" K end;
; M$ I0 a o$ c# T1 f/ _- e (2) while <condition> loop
9 H. C' k0 _# R$ Z <statement sequence1>;
& ~" _$ e; K7 `- m end;
) M3 R1 G4 L1 d% k! Y0 D (3) repeat R' l$ c' t/ r( V( j
<statement sequence1>;
& g3 V" w- i. N+ i: o' s$ \ until <condition>;
' \0 M8 v1 F" K; y9 u" T (4) for <condition> to <condition> loop
. r* \' q9 {- d <statement sequence1>;
9 X" v/ g4 U, E7 H+ f/ j next;
$ @8 ^5 K1 S5 a* z' p3中断语句% z, I8 H+ r# n7 S# L a
waituntil <condition> prio <integer expression>;% f S5 }+ o# F8 n
' _% L+ r$ y5 a, `. E
, C. E7 |$ r" y! c5 G以上为常用的函数!# n0 f1 ~: u% p; }8 o& V
还有很多,如有需要我把资料发到你邮箱里 + h1 u3 M+ A- S' V" f
. N5 a3 Z8 O, N' F! `
) H; C( S* a. l" m8 w: w! N3 V0 a3 B* o( A+ L5 c
6 M; l2 t: t5 O6 a8 {7 d# T% O* {, x' i2 x3 T( p
$ P$ e2 R5 R. @% P& r4 f9 W1 z* P* f( T. \
1 T; a: A0 ?; W8 p- T
" p+ d$ ] v$ F' v7 B: x
7 Q: u6 K5 y5 \ @+ D6 ^3 ], d3 z C |
|