|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
$ h8 T) I _/ i if <condition> then
* t0 s7 L% O' r3 v <statement sequence1>;9 j! I3 Y3 C' T5 l0 K
elseif <condition> then
) G+ K8 {6 V& {: t( E5 {3 @% i <statement sequence2>;, o8 |& c* u% }$ p
else
4 Y' \4 X) o: k6 i8 V& R3 Z <statement sequence3>;
+ U2 n% l' O* f U( H3 ^9 B end;! ]% _# k# t n( B
如果分支比较多，用：! p9 b4 Z( d# v
inspect <expression>( G1 s1 n- J' V2 x& f
when <constant_list> then
1 C% O$ r+ Y" Q7 y' g& e <statement sequence1>;( X- Q% s, T& X
when <constant_list> then
# [, y% _" @$ o( i <statement sequence2>;
+ a4 _+ J% j3 K$ N$ |, `$ E ...- l2 P" n( l d% F% |) }0 S3 q
else
/ [1 h; R* t- q <statement sequence3>;
# A4 R, l8 r5 k/ _end;
% m1 \9 n/ R% T! v$ c
- X% C+ ^1 `% q. u$ l2 [! ]6 I2 {1 E1 P2循环语句
! U0 A' ~6 Z. P; e (1) from <statement sequence1>8 T X" d# C v3 M+ K6 q5 m- V) K
until <condition> loop
0 q6 S$ \( N$ ?. }% O5 q <statement sequence2>;
6 B: ?4 Y3 P- @) G. t end;
% U6 _+ a; W$ \; P( \7 q Q (2) while <condition> loop+ @. r; a7 w- C( K1 Z: c. ?/ _
<statement sequence1>;
- d- G' R# N: w% a7 m+ s end;
. N; k' W6 \/ F8 C/ d' E) a (3) repeat
1 |& n' z: h. y' Y) k <statement sequence1>;
1 `9 H. [0 w" M until <condition>;
' ~* [6 f& K& s1 w1 i1 E (4) for <condition> to <condition> loop' L1 b1 ?. R& E( l1 z
<statement sequence1>;/ L5 H* |* R0 |# H. `
next;# d: s2 ^3 \' a" H
3中断语句
7 V. i4 i7 y4 M# x0 B waituntil <condition> prio <integer expression>;
6 d' q5 @+ l' \6 h# C+ y0 i# b; c0 a( _8 K d3 i5 b- t
# n9 }0 K7 V+ v( W
以上为常用的函数！
% p& G$ y7 D9 k$ Q: _8 i& Z还有很多，如有需要我把资料发到你邮箱里 ) e1 `/ @* o, ~" }! i" X# \
1 E' N4 [3 V- k8 H5 N& X) r t" b1 `; V1 ?
9 ]3 `- s8 B" t% D( j3 X8 f 3 _4 A+ U9 ~. ?
/ L: q f/ o9 C! o) o+ v0 a
% H2 S8 z- a4 l& O! J
( u/ d+ y9 |. Z% u3 Z& w
' W& D& ]+ N d9 P/ l7 r5 P1 b- d% t2 J
( f' e5 S* i* T( @3 b0 f" |* f
|
|
[复制链接]
