|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
% W" a, [5 K" k- Z: r2 t* a5 A4 W if <condition> then* L% R+ W: u. f; i/ H. j5 o: w$ f
<statement sequence1>;
4 K8 v4 D1 ]- A5 J# e8 O* D6 P: _ elseif <condition> then
1 ?- ?1 X" H5 y1 k9 S <statement sequence2>;& w) |! p: f) @8 M: N+ e% i
else
% \. s8 D1 W% _ <statement sequence3>;9 V- G, B: i7 S! [
end;
* W4 `. X4 d. K5 m. }6 V如果分支比较多，用：* ?1 v. K) r! Y' @3 K L5 B
inspect <expression>
9 B/ C' `& f1 @1 g/ ] when <constant_list> then9 Z/ N4 o! d/ \. `. ~3 f9 i1 f
<statement sequence1>;) H) o# \- c8 t( B( e3 a$ S
when <constant_list> then+ ]3 y; S H4 v9 B4 M w
<statement sequence2>;
( i# i) `/ @9 b- L& o6 _ ...
Z9 h0 G! k" ?: J V2 d else1 }7 V. J" J' }( c
<statement sequence3>;
" F" L% r. q" ]! }$ yend;3 t L% P& v9 e; J
# N8 `5 e" k6 O2循环语句
0 H3 H2 u% y7 V/ t (1) from <statement sequence1>
& Z- A5 ~5 o$ C8 _* D7 @: g2 B until <condition> loop
8 s" Y, O4 h0 V! O- q3 }0 e! O <statement sequence2>;: X3 ?! a3 J4 F- o
end;9 D0 X! @, J- z, `7 ]: w
(2) while <condition> loop
! O! z' f) ?/ l4 [ <statement sequence1>;. p3 n6 O- k7 Z. n3 P! \; J7 E4 q' m
end;( |9 _; @# S2 T6 O$ R
(3) repeat
1 m8 R7 F8 z! k* r! T <statement sequence1>;. v9 ^4 C. ], W# E
until <condition>;
4 E, N0 b( k2 b+ B( |% H% ^6 x (4) for <condition> to <condition> loop
) i6 c3 J" u# u$ ~, ]; h <statement sequence1>;* G' K$ S" M7 z9 ]5 C
next;
& F: P, ]" y" _- t4 v0 g$ P2 J2 d3中断语句8 O) l% e( U# |* G ?2 Q* M
waituntil <condition> prio <integer expression>;% m( _3 W" \- Q1 y
3 Y" v) J+ ~6 Y- |3 I5 B: w( J2 f8 `) Z) F5 X3 `- j
以上为常用的函数！
, C" k3 ?, Z$ r还有很多，如有需要我把资料发到你邮箱里 8 q3 {5 t5 ^& i- V# D0 f- a5 D) `
3 j6 P9 I4 v- z4 j) g1 G+ }, U j" C- L
' f6 M V2 p7 y) r% F2 R' h' _+ s: h# y- A6 x8 d
" u) U1 k' S& L) A# P( u# e) r0 F6 q
. v) f- ~2 X* B9 \9 P1 w
& F2 [' ?0 K& j* q3 B- G- Z
0 W) {' M% S/ f9 H$ m6 ~8 V# _/ V! Y/ Z+ J! _' e. F5 `/ g/ l3 P+ G
3 [( w. e+ R* g
1 B7 X; r/ l# b& i9 G; m |
|
[复制链接]
