|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句. |% u5 H! u) ?+ m
if <condition> then
% S3 c! C6 r# a0 T; o <statement sequence1>;
% F, S7 b& g6 G- M W, ~ elseif <condition> then
; g0 Z( b( ^5 f. a% V <statement sequence2>;
1 j5 p/ i0 t- e8 R4 `6 U) H else
5 _, K0 x& C% F0 g$ v+ Q) R <statement sequence3>;
0 ], `/ _& F" ?1 C end;
% I2 I. S4 Z. v" Z; o: j如果分支比较多，用：; `; x5 c# Q- `( W
inspect <expression>
$ V1 l( _2 w1 |) o& v when <constant_list> then
% V; p# I, s+ b! z7 o+ G9 H7 ` <statement sequence1>;
- D J) a. ^# M) F1 A! A4 ] when <constant_list> then' P' W: N* Z. x0 c& u" J. @
<statement sequence2>;
" M, }; }+ t; ^1 u# D ...% _/ m. N3 v% q' t
else+ {# S: N7 N) `( g
<statement sequence3>;, n! S* ~/ W6 B7 O
end;1 ]6 E' l% Z1 `$ E8 H; e% Y4 ]3 O" M
, f2 c3 h J, z( C+ {: P
2循环语句1 ^5 k% m! R. R) t. P+ B
(1) from <statement sequence1>; A% J0 A( |: V8 m5 R* g
until <condition> loop* t- k5 i; x2 m4 z$ l! Y, x, g7 c
<statement sequence2>;# n X: o f( M: y3 v: y
end;+ }0 T7 C7 h2 }( d& |
(2) while <condition> loop1 S0 E6 u1 O- F2 ^! _- n- i2 q3 O
<statement sequence1>;
: y9 @2 S2 M8 X2 @7 g end;+ \/ y: p" D( I! O: k
(3) repeat 6 n. h) }; H5 K1 ^, \( @2 E% y- D* M4 V
<statement sequence1>;
6 z. V: z% b+ G6 P# X4 H4 P until <condition>;2 q& E* D# w$ O$ P
(4) for <condition> to <condition> loop
$ O& ]3 M& _7 }2 j2 Q9 C <statement sequence1>;9 M! n$ P6 L: B7 Q: Z% J
next;9 R; N2 p8 H+ E( Z3 u
3中断语句
7 q1 ^8 ]0 Q% A" f$ D7 C# L waituntil <condition> prio <integer expression>; _8 y; v( b, C* T) m7 k
9 K% |/ q% \! {7 D) L# A
! w; C3 q: G. ^4 Z0 A: ~1 ?
以上为常用的函数！" _+ L5 [6 w3 P: I
还有很多，如有需要我把资料发到你邮箱里
0 |1 h0 C% f/ @: j- W8 d1 |8 y2 ]8 G* a
: N6 [* d3 w! C8 [. y: Q$ |
( D/ R" {; K P/ D
/ ]5 a3 k; @9 W$ ~6 n% Z4 @2 d& X* ^5 _2 p6 F5 Q3 w$ ^
5 o* @1 ~6 o9 i: e+ C+ C4 Z( J( i$ h. L6 J) j5 ?
$ D8 ]) X3 y8 ?' T) @
% J: {! n3 ^3 |5 s, Z ; W6 U- A- i9 s: j2 J* c
|
|
[复制链接]
