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发表于 2012-11-13 08:48:12
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1判断语句" C1 O' @5 i4 L9 B; L! E7 _* n
if <condition> then
9 {7 [/ t2 |$ T9 [. x( B <statement sequence1>;
4 G2 O3 u! S6 x: ^7 e2 } elseif <condition> then
) e2 S3 ?% A b+ z: c- R- m <statement sequence2>;( h8 i5 j. L: w: k" d( T5 h! m/ ^
else
) q+ g3 u3 y0 M# W! _, J <statement sequence3>;
! s, B8 C* T4 D; c' M3 F end;0 L" W' T/ }8 ^
如果分支比较多，用：
, z7 G2 b0 ?- \( F! l! T, E inspect <expression>- D# q; v3 K: j. \% a/ V
when <constant_list> then$ Y+ H: e/ N/ c e
<statement sequence1>;% @" e9 E7 J) Q& M2 R- V8 u) H h
when <constant_list> then2 R* ^3 f% V) ]3 [: }, z& Z
<statement sequence2>;
$ \# z/ T4 i& l# V( P# R ...
2 E2 I8 @. B% A; E else
7 B( q# ^5 h( G' { l% ^" }" \ y5 l <statement sequence3>;. t% A" @( Y$ d" v
end;
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2循环语句% D: b! c, Q h- z& H% X. y
(1) from <statement sequence1>
+ K# f" [# I, [) e9 r until <condition> loop
6 ]% Z+ M) a. N+ m <statement sequence2>;1 q( g/ |0 K: t* N8 `2 a
end;- |, v+ w8 f- `& u; E0 r. W
(2) while <condition> loop
) k' z5 H( v: v; B0 M0 H* \ <statement sequence1>;! R& a1 f( f9 F) [, D- M" x
end;% m; W8 ~0 D, w: U+ ^
(3) repeat
5 k t1 [5 u9 q: T: _# Y# K X <statement sequence1>;# _2 A( |4 h$ w- P. S* b
until <condition>;
) _: R$ P. @0 ~ (4) for <condition> to <condition> loop5 B% J" \" b/ {6 @( C" M
<statement sequence1>; d0 u1 V0 F Y' \6 b. o
next;8 m j, M5 e* p0 o5 V% J
3中断语句
& d# T+ U" M2 N! I& |) K waituntil <condition> prio <integer expression>;
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t4 J3 D& J( l ?+ b. I
以上为常用的函数！
" [" c" @( t2 [6 f还有很多，如有需要我把资料发到你邮箱里 ) {& U2 k1 K# u( Z) v9 D: f
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