|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
+ g, x& w- F' p$ b0 z& S if <condition> then
9 g, N& S1 L# {0 p i* V5 L8 {$ E <statement sequence1>;
* X: Q, J( c. G elseif <condition> then$ }7 }; P3 Z. i3 V
<statement sequence2>;
( R; T! b. Y( }( ] else
% v2 r U# a/ a. K# c& J; { <statement sequence3>;
* X/ Z. {$ P1 a8 Z& x# g- v end;
. x I% s% a1 o如果分支比较多，用：3 X; T8 q1 m6 O% |
inspect <expression>
/ ~" c3 f( h8 {" I& l( x3 f6 } when <constant_list> then! U0 b, s9 s. N
<statement sequence1>;
( f/ s7 [6 a+ h when <constant_list> then; t9 P8 o+ H: Z
<statement sequence2>; f4 X# b Y8 f; C! R
...& C6 ?) o" d5 K
else
5 K( K! v1 A5 K7 b' o <statement sequence3>;; k9 U. c0 C, L% m6 s" {0 ]
end;
/ o2 H( \7 P: ~! U5 T `) W3 m. R+ C9 L& E& E
2循环语句; G/ L1 c- |$ R
(1) from <statement sequence1>; A% v! }! v# i1 A
until <condition> loop
0 _6 l& C \- Z. r <statement sequence2>;
0 B8 W Q0 r. B n. L end;$ X& o$ Z( }2 S
(2) while <condition> loop
$ q! d8 V' h- J# u; u- P <statement sequence1>;/ ^! N2 N8 s/ X5 ]
end;! h( {/ z7 B( m6 h0 F u
(3) repeat
& \4 _% e; D5 n4 F <statement sequence1>;
& V, P1 |% U D N! Z until <condition>;
8 o3 |8 ]- g! u8 R8 f (4) for <condition> to <condition> loop
( G$ r( X- t# p <statement sequence1>;/ G& t, H1 ?' p2 C h1 ]
next;+ B1 F9 V* z: U5 ^! O7 s) p
3中断语句
* A- O0 u# K) H6 J# V/ K- B waituntil <condition> prio <integer expression>;3 \: |, ~* k* V
$ }& G+ {6 b8 A- _. r$ R6 ` I
2 r8 J: S9 `0 `* {! T: G以上为常用的函数！
# Q" k0 |8 D Z p还有很多，如有需要我把资料发到你邮箱里 4 s' J- p& O5 \
! ^4 B5 t ~$ ~
, e5 v/ B; B- ?5 Q* S6 J3 E1 S' t% m! |/ `6 P" _, h( [
" S7 Q; w" P0 a7 j
3 m4 f& }0 P6 x) i
( G1 e- R! n) U8 s2 S# `* S- `% L' X+ z( t) ~' j5 r
& w; N" j1 M. d! ^
; [0 j% L, \8 |+ k* M' U" K R! y
^. |+ U& l1 l1 I2 o9 }
|
|
[复制链接]
