|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句0 R1 Q9 y3 \+ t9 c: \: E
if <condition> then/ P9 Q& K8 g# h7 c" l
<statement sequence1>;
0 z# b/ ]# @! ]- r; u) c4 d: T elseif <condition> then
: ?5 h; [4 @6 g1 U <statement sequence2>;
, ]' G" s1 @2 `. z D. B7 D else
8 ~3 |2 k7 p$ B0 l: u <statement sequence3>;/ V- s6 x! \5 N7 ~8 n+ r# E! t) z
end;
8 @ L- L6 b, O/ Y1 K- H如果分支比较多，用：
; S' a* t! n5 O" P4 R) K: e inspect <expression>
+ I7 f1 {9 A8 s6 }. \9 L+ C when <constant_list> then/ ^4 [5 S; ~4 E" k! r
<statement sequence1>;
" Q+ J4 @- t' w2 ^9 s' | when <constant_list> then4 X) ^0 \2 I V0 A* ^" s- V
<statement sequence2>;
7 w, x9 j( F" D7 |; y; r$ e$ p& d) d ...
4 v6 j9 f1 f! x2 k) g else
) p+ B( u' |' Y5 i+ H7 ^# a <statement sequence3>;( w' \) W% F3 n
end;1 Q' W2 B# z* y3 x
8 u5 _% C& r9 ~1 ^2循环语句3 h6 u7 u. j$ ^2 X7 A' J# O$ {0 M
(1) from <statement sequence1>" t9 F$ v+ O7 d
until <condition> loop3 y+ k2 q/ p' @0 e. F6 a
<statement sequence2>;" _# M( {3 D/ c* D' Z6 S6 X
end;
) Z+ J( d7 a) @) g* j+ X& o7 _0 L% E (2) while <condition> loop
& c6 v- P3 _; H6 A. \ <statement sequence1>;9 @! z; T) Q4 n( H
end;
% C7 z/ J: I- } A0 }6 w& r% } (3) repeat # a5 X5 d7 a y" h+ e/ j& ~
<statement sequence1>;
3 @8 L3 C$ m% K4 i! n: \ until <condition>;
- L+ c& [# S/ s (4) for <condition> to <condition> loop
8 k, E* s3 Y ^% k$ P9 D5 Y6 s4 \& H <statement sequence1>;
, c8 `! h* G; _% U5 a, ] next;! U4 |3 l' ?, Q( e
3中断语句
+ `! i: n; Y8 P1 Z9 p( r9 U1 _% j waituntil <condition> prio <integer expression>;
7 U2 o8 S" _. Y5 {7 j- K. m4 v- g2 y( Z4 U0 h/ R, L" |4 l6 g" {
$ Z9 J- D7 t: Y/ ]6 e以上为常用的函数！
4 {& k1 Z( R1 W还有很多，如有需要我把资料发到你邮箱里
: E) U7 ?3 G8 X5 H k: l4 f6 t8 J
+ z/ T3 e" F# A* h8 t0 y# Z% r% f) [7 `" I
4 y- g: a: F% [$ z2 A8 K( a/ d
" v l9 \& `( b" T: n, F# U
& P/ ^. Q8 w U8 v
! g" M6 z/ e, P1 x4 I6 s& n, i, F/ s7 x% k. i' v$ _ y# g
1 |' y/ d+ i+ g) D" f( a. l/ p
W$ a2 H% h/ ?0 G5 G9 b
, ^" T6 B+ x/ f: Y
|
|
[复制链接]
