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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
( h4 |+ P' [6 B) x2 g if <condition> then
; H5 H& y6 ]$ Q9 {0 w# { <statement sequence1>;
, N8 l2 W4 y2 t S$ T( D* ~( V elseif <condition> then4 U& c+ P0 o& G! z! U( w
<statement sequence2>;; ~% N& l7 D* R7 W% ^9 Q- l
else
1 [; L! e3 T) H% w/ F <statement sequence3>;* F# I' D) A, [# Y& S% T x
end;: H" _( {/ r. j
如果分支比较多,用:+ h- X0 I% q% [% |+ e! ]$ h* E
inspect <expression>
3 R* x0 O, q' c6 |4 G when <constant_list> then
- l& o% v0 Y% O <statement sequence1>;
; l7 t$ E; Y( U4 ~+ V h when <constant_list> then
) y R8 u! F8 |1 g0 r <statement sequence2>;
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else
8 c& d2 D4 A0 Z; y0 \ <statement sequence3>;6 t* k$ S8 n; R) \( B
end;
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! ]" n* b' ]1 c' | z2循环语句
& J. r( g P- q9 \7 {1 X (1) from <statement sequence1>
2 E5 ~) |: C+ O s) A% T2 i# _ until <condition> loop
" e: _0 {3 Q# J0 S <statement sequence2>;
5 w, U( U0 _' M# l7 ]7 m end;
$ \9 t4 x: @" I (2) while <condition> loop3 y: w6 i( S5 B7 U% v7 ~
<statement sequence1>;( S5 Q! @2 P" L A) K# b
end;3 o/ L+ b0 U+ {* m. U& e
(3) repeat
% U7 n, O+ Y" c8 [7 ~ <statement sequence1>;0 s0 Y) O0 A2 m0 }
until <condition>;
; y. w! _& A8 {! c6 ^1 y3 S( l (4) for <condition> to <condition> loop
4 t+ I( H, j1 r l <statement sequence1>;
! w3 T, K, K1 k" T: Z next;
# c8 v h! }. j" t3中断语句
( M7 |- [0 O9 d( j. k( m" y- Z2 x4 [8 B waituntil <condition> prio <integer expression>;* Z& |- k4 Q" D3 t H1 j5 M
; B) P4 }) o1 |: Y# w8 L+ K
: \4 h% m" X" B$ \以上为常用的函数!1 q; }% t4 h' C: {4 r2 E
还有很多,如有需要我把资料发到你邮箱里
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