|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句% M# o6 R! D1 r4 i1 }4 q
if <condition> then
0 ?9 E) H+ h$ I9 \& a* A7 i <statement sequence1>;. j+ W5 ^3 s4 ?% p* y
elseif <condition> then2 ]1 d! C* E% e. H, V) Z3 p
<statement sequence2>;$ P; S d+ O8 h3 ?! e! x
else
. p+ d/ ?# B5 G& f1 w <statement sequence3>;+ ]6 W5 T; [* s) u! {: @
end;6 @- S) D; B. T2 N+ j4 s
如果分支比较多，用：
# h- P+ R3 g( c inspect <expression>
0 c' V- Q1 J5 z" Q# x6 H' m when <constant_list> then
& J' F' D) D9 f0 q <statement sequence1>;0 {1 T5 a0 Y, k; c, o7 n
when <constant_list> then
- |4 K$ I: c4 @0 S <statement sequence2>;
/ L* Z9 a# J9 l: z1 A0 ~ ...' v$ H( u( z% V: h
else/ ?* C0 I) X% W8 u- t. _
<statement sequence3>;
' m3 L9 B# R- n4 E- |2 tend;- ^3 L; m2 f# z/ h* T- J' a6 n
/ m2 K8 r: @7 Y% X' q6 T
2循环语句
' M( g3 k! o% S: }' R (1) from <statement sequence1>
5 K+ X) Y& z* Q0 P0 }8 G# v until <condition> loop! O' N; v- l [0 N
<statement sequence2>;
u6 `& i3 X3 C/ l! E end;
4 a8 i a' x. k/ j( ^/ q (2) while <condition> loop
9 d# c/ ]2 X* I; `3 s( r <statement sequence1>; }' _% c0 S, _8 I3 W
end;$ }/ h$ _( z: |& }
(3) repeat
. _" h; X( C& z <statement sequence1>;6 o. z& n) S7 C) I9 Z$ r! b
until <condition>;$ Q7 h) M3 B2 z+ j( _3 e5 \% U
(4) for <condition> to <condition> loop8 L$ ^7 h8 \5 s% Q7 t
<statement sequence1>;' B1 X. J+ E6 {
next;
. t2 p, O4 ?) j: t9 ?4 m8 a5 H3中断语句/ w4 Z4 S% p- w2 r" p' t% X4 Y' O
waituntil <condition> prio <integer expression>;" j+ \: W E, g! q; N/ q
3 P( g3 D5 l( m, z2 ^1 ~7 S9 e( z
以上为常用的函数！) Q5 \3 `& ?9 S5 P7 y+ Z& N4 }
还有很多，如有需要我把资料发到你邮箱里 ( W0 D$ K& F# R4 y' n- U: v# N$ N9 W
3 a9 K) A8 E$ K
7 i3 y# P6 v* I6 |" n, ?' Y N
8 j2 [' |4 I+ w; A( K
, H" x2 y) J1 X9 h5 i/ ?" y
( Q& t+ d' S# K0 j" E7 Y- [4 D& |8 Q( O
3 T+ h+ c3 |5 @) l% K* u! F! N$ C
# X6 [5 E) I; g7 V
# o, F2 i! d9 Y
$ Q8 {+ v9 R+ o8 D0 O% l- k# u4 K |
|
[复制链接]
