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发表于 2012-11-13 08:48:12
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1判断语句5 d/ f5 g+ r. V+ \/ q) n
if <condition> then( _/ I& H/ H$ V, A& ^( A2 b/ Q5 F
<statement sequence1>;1 n: o* S c6 P( a5 C; I
elseif <condition> then
3 D0 ~7 n. Z( j& w) k+ ` <statement sequence2>;
{' k6 D) ^$ r: h3 Q else
2 c- R7 B: z {& t X <statement sequence3>;
3 |, d7 N9 R* b end;/ c* m- T: v9 R7 B
如果分支比较多,用:! n6 w0 I% |- t
inspect <expression># H1 C2 D% C+ I& J' U9 \
when <constant_list> then
1 ^% r8 Z3 K% k0 s! ] <statement sequence1>;# H. |( g3 s0 N: ^/ z) C ^. o
when <constant_list> then* y% z5 u1 k% C/ L& {0 y, N
<statement sequence2>;. \, U& T1 Y2 [ ^6 a' X
...
# Y# T; @4 I ^6 U! C else
1 B% @) f" a2 X <statement sequence3>;
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2 r. L2 d) a# Y( @6 n- U1 v2循环语句 a- s! M a6 l
(1) from <statement sequence1>
' N4 M' M- y$ ?/ L( P+ Y until <condition> loop G" v/ P( E- e' g
<statement sequence2>;5 R8 o, D$ ]/ N
end;5 C% I+ r: \7 R5 i3 w
(2) while <condition> loop3 R0 v: S- ]% ^3 F
<statement sequence1>;
* o+ D- d% i2 O+ u, p9 l+ }& z end;: }/ c" o L( Y) Q9 {
(3) repeat
+ q4 M- `" n" s/ d <statement sequence1>;
; L, _+ d1 y+ W9 A7 c k until <condition>;1 h8 f6 v3 i% o' V( b
(4) for <condition> to <condition> loop
' a! n% c) D% n <statement sequence1>;( h; a6 ~, @. Z1 o
next;9 P7 I% ~0 @4 F$ d
3中断语句
1 O( S7 q9 o! D) R waituntil <condition> prio <integer expression>;
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以上为常用的函数!
% D; g$ V4 g, ^3 L0 d还有很多,如有需要我把资料发到你邮箱里 , C' D9 a. o% w4 r/ C
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