|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句% U' `' T8 x8 C/ }3 g5 X4 k
if <condition> then
- h+ N N' I) I- @3 t/ B+ K" C <statement sequence1>;
2 K9 e4 ~2 H, [ elseif <condition> then/ F B9 I$ N8 {* |$ X. T
<statement sequence2>;6 e) I# p% g2 `4 {, E' c6 s- Z: v' o, ] e
else
! Q) f4 t* ~& q; H3 J" ~) D <statement sequence3>;
: f7 \$ Q& I# c q: g) Z end;, ^/ W0 L, r- }! Z# C; ]
如果分支比较多，用：
) L& |5 J9 X. E- x& | inspect <expression>
' g; k9 W& {6 |0 W) C/ p& i when <constant_list> then
7 b* ?2 u2 _4 |, j. V! _8 a; r <statement sequence1>;* M6 b2 L v' e6 P, l2 s) x
when <constant_list> then
/ s& t% u3 L! |9 M! H <statement sequence2>;
+ ~0 N2 t, B- X. P7 r% L6 V; W ...$ n8 F% K9 ], |) K( m
else
8 i# \. i( [; K$ g <statement sequence3>;
! Z; a, Q7 m0 }& Pend;
/ m; j) s8 G1 X9 k1 a% e8 d) ] J+ f& _ w' L6 p( ?- V
2循环语句 z9 B' k+ ]3 u5 z8 w, q
(1) from <statement sequence1>" ~6 o, f2 P: S4 `, N5 |" g5 }# Q
until <condition> loop
- D1 p! j: i1 O- m4 L9 y <statement sequence2>;
4 B" V, |% ?" M! } end;
" V* d \; I% x8 M" L (2) while <condition> loop
" E' S* _% g& j( g) P0 f$ Q L& b <statement sequence1>;
$ e- U; \' D; R6 u: w, d% _ end;9 W# o9 U( H5 P6 j. \, f8 F( m% r
(3) repeat % V- H( e* g* E2 w/ k- ?9 L! \
<statement sequence1>; C0 x! `! a c$ a
until <condition>;$ J" K8 z: d6 B
(4) for <condition> to <condition> loop; _) U' |; D1 I% }8 g4 W
<statement sequence1>; ^8 k v' g3 V2 z9 p! p
next;
( b. J* N4 d& i. s3中断语句( p! \5 E* A) r/ W: D* M* \
waituntil <condition> prio <integer expression>;
z1 S7 t7 c1 d1 m; S/ M- l [0 B! D; A1 _5 s. ?/ A
9 a8 V2 g: W$ ~
以上为常用的函数！, S8 }( S1 V& F- p u8 w f; v/ ^9 Z
还有很多，如有需要我把资料发到你邮箱里
: E5 _0 ~: o8 D2 |; z0 B) _
5 \7 }! |5 S0 Q6 Y( ^! h# l6 N A. M ^" {) f( T
1 |6 k0 i3 i& X- H8 q, o
$ f+ r/ l' o4 U2 K: F; H, E
% |" X" I( r) a7 o d) C
5 {+ k1 C+ m5 _: N( I( G. v
, Z# z. T" _+ [
0 m/ J9 {' n2 F4 P% F) @* b
- d% X5 { c" S' x& b% I1 J* S
! o5 Q' l) \7 b! C |
|
[复制链接]
