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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
7 Q- H- Q: k: a if <condition> then
: h2 Y* P2 ~# }2 _7 G <statement sequence1>;
6 R: i1 T/ |- b0 Y. P8 o& Z9 z# l, m elseif <condition> then0 |8 j* G( N4 K+ s; Q. N
<statement sequence2>;! c& m5 m' Z* W5 N
else
1 w @) C4 v8 V' v" R- x <statement sequence3>;- P; I3 J5 g6 j1 h( a. `8 j x( b
end;# { ~) @ K7 A. b
如果分支比较多，用：+ j2 u$ \& f, F& }2 g( H
inspect <expression>
% ]( X# @- T/ N+ F2 ^ when <constant_list> then5 k1 F+ m$ n- _- P7 |8 J
<statement sequence1>;
0 k2 j. G) R( _ when <constant_list> then
6 \% o. f2 u0 K, z <statement sequence2>;- L2 f4 `, ?8 T
...
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<statement sequence3>;% g5 T( H, Y. ~( K6 ~8 R1 c
end;# Y2 v3 E; q+ [2 r+ M$ {) ^
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2循环语句
% m1 q, m* s! U* s+ ?( K9 t (1) from <statement sequence1>9 K1 R" R( g% r' ~1 D
until <condition> loop
! K4 f* z9 A3 ^# P) ~" a <statement sequence2>;. z* t" k/ U* Y C: c5 J! e
end;2 ?: ]- z& U: [2 z# \
(2) while <condition> loop
3 D- `& B9 A. l/ l+ D/ o <statement sequence1>;
' f h. e; a* _( R1 S0 z end;7 p N \( D( Q4 v
(3) repeat
# |& y3 w8 w5 Q* W( u# _: {% G E <statement sequence1>;5 N" Y/ }$ y( E2 }8 X
until <condition>;
5 O0 _7 g+ F, X9 M (4) for <condition> to <condition> loop7 l2 u: w8 C; L, W6 @
<statement sequence1>;
1 n7 D( d. w$ I5 w! i3 x8 H; p next;/ u; }1 S. Y- A N2 u. { m
3中断语句
$ i, B! @- K- V8 G waituntil <condition> prio <integer expression>;2 A* Q; j. ^: z* D5 r9 j
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i: `( W1 T ?7 k% ^
以上为常用的函数！
2 ~ {, h4 H1 b9 D. ^, j9 C还有很多，如有需要我把资料发到你邮箱里 $ l7 z' ^! x# s8 @7 L! v: O# Z# d
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