|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
( Q( t! _" B- e; M9 q# V if <condition> then1 A2 X' w. R# M X
<statement sequence1>;
# [; y4 P" w. b2 n0 l+ | elseif <condition> then
) n4 c' e/ m3 C# H4 x& P <statement sequence2>;
+ t8 i; R1 \9 W; t! \6 H9 K else 6 _% l6 |# ~/ R8 M j
<statement sequence3>;9 r% U) `6 `( X `4 Z* i
end;3 y7 V G7 [: V& x
如果分支比较多,用:
; P" P, P( Z/ I+ L3 T% ? inspect <expression> _2 P$ U" x1 f: f2 C
when <constant_list> then @1 c4 c: x% v, ~- E
<statement sequence1>;
8 i) R& D. a: L/ F% t0 I2 [5 K! D when <constant_list> then
& H0 n( i: H1 N, N <statement sequence2>;3 G! `6 k" j- N3 J, c9 m/ C6 S
...5 X0 C6 V! n: W
else' m; y, f1 Z, W! ]4 R0 s
<statement sequence3>;
% ~! R* ^+ \/ f, k+ Bend;
: M9 I( c% O2 Q& F0 w+ S9 a
, o( B. J# g! Q0 t6 Z) Q2循环语句/ c* k4 S B0 z7 M8 J+ m
(1) from <statement sequence1>7 J6 ~/ _; T: \: y+ I: Z% O3 c
until <condition> loop7 V. [6 c8 N! e! H( g% P0 ~
<statement sequence2>;* s: D" u( A- X2 S$ X9 | V. v
end;! I" g) V. i+ i' O
(2) while <condition> loop6 r( [! B0 n: j- U8 d0 b8 X
<statement sequence1>;) C# ^, m. n0 N
end;( r8 n8 N4 \# [* @2 S7 y
(3) repeat
4 W7 r4 ~. o9 x% o2 }) X) r <statement sequence1>;( [' Q1 @+ U+ l
until <condition>;
: q" E. j$ g: P& i% ` (4) for <condition> to <condition> loop6 {$ X- N4 w# f N, [
<statement sequence1>;3 J# k# e* ~3 l; ?2 F
next;
* T9 u- i4 t' E- x+ P3中断语句
. t( u9 ~% n( c1 U waituntil <condition> prio <integer expression>;
8 s+ D& f6 h* D3 Z
; R' ^7 g( }# L; H: m: }/ ~# d8 Q- D0 S3 d2 z( S$ g
以上为常用的函数!
; w+ |) Y+ r+ i. O2 ~0 R' C还有很多,如有需要我把资料发到你邮箱里 1 H- ]/ S+ }( E8 o/ b3 l
( A5 p9 C0 [! p; b5 m6 d# _8 M1 {8 p) |: { A) s, N8 B
( E- ]% |+ D: @5 x. Q. X
+ f4 z' Y3 S# C) ^8 x
. N5 U) R: S1 q* [ v, W+ [. w4 s# ]1 x7 \
4 c5 M" I" c6 Q$ N& J" W( e
, I- s3 ? X( f% j0 \. G5 m, m* K6 F( `. L& J0 B. b
) r: N1 \# P- `0 K
|
|