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发表于 2012-11-13 08:48:12
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1判断语句
* e& `+ K- D+ y+ J( A if <condition> then( q- t$ K9 C: d+ l+ a& O
<statement sequence1>;
5 h7 X+ `1 a e7 ` elseif <condition> then
. Y0 Y \/ @, ~" N) j <statement sequence2>;
0 V5 g) \2 y8 C else
# J1 a# }" D9 D0 c* c <statement sequence3>;+ D5 X- a. |1 b( Q9 ^# |, U9 b0 }1 M
end;1 v0 T. ]5 ?" ]0 I& F H2 B
如果分支比较多，用：
8 Y0 l: a2 ^. z# J, ]8 e( \ inspect <expression>. l! `9 c, L9 P) T- Y
when <constant_list> then& t* [. I0 Q E, D1 I0 i
<statement sequence1>;; T/ O9 B' u4 v" r. d
when <constant_list> then
1 K3 r* ~8 o; \1 j2 k <statement sequence2>;
. a0 Z L( s; Q' \* h a- d ...
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<statement sequence3>;7 A+ }- \& m' @
end;
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! T% o/ J7 q" B5 E2 ~, C2循环语句
|9 K$ r1 ^1 z1 ?# V, s9 v (1) from <statement sequence1>
" O4 D& ~" u. S) ? until <condition> loop
% F8 o2 F8 D1 m- G8 K- y, k <statement sequence2>;( `8 O4 ^( _+ v
end;1 I3 v6 y& n6 u4 ^9 n
(2) while <condition> loop v ?: l6 V% ?& `* x
<statement sequence1>;2 Z3 ]9 l: D$ Q
end;! m. B* y; [4 g0 N# ]! `
(3) repeat
; l/ o2 N2 w4 Z! e0 o8 p; Y7 G( ~8 p <statement sequence1>;
& f0 z$ o) }) ^ until <condition>;* @. W2 ~) Q) Z0 \
(4) for <condition> to <condition> loop1 M, o' D, K: H E$ e& l6 V) t
<statement sequence1>;
8 u# w- Q# F7 E3 c next; W. ^* N! J0 Z( y$ w/ ~" p
3中断语句
& `3 B/ @3 o$ j0 u7 z# U) q7 x waituntil <condition> prio <integer expression>;
) }5 v" C4 N: ~6 [# x X; D- A$ q3 @4 M0 w `' }, V
# h2 ?- S0 e/ L% a4 G) C以上为常用的函数！
) a) V% T2 B; A% p( J还有很多，如有需要我把资料发到你邮箱里
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