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发表于 2012-11-13 08:48:12
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1判断语句8 W& ^6 [7 I1 }
if <condition> then
& N1 h# z9 _: F9 [7 L L: L <statement sequence1>;
2 M. M5 Q8 G( W4 o4 e elseif <condition> then% o2 S% q7 k1 \8 A/ K q2 T
<statement sequence2>;
+ c9 ]& t2 [; Y, Y% ^; \ else 0 Q" K5 _/ P4 [- ]& `' v
<statement sequence3>;' b( j8 r6 P# I; _5 H0 [" s
end;6 b9 P* Q0 W6 D" U, Y; [% ?+ u
如果分支比较多,用:
, Y, K6 g5 j& u0 B; C inspect <expression>- ?( l( X$ q& Y: G6 [. i( ~
when <constant_list> then7 y5 b* W; T1 s* [
<statement sequence1>;; ^7 @' i1 N C, e6 v3 X( V
when <constant_list> then9 w C; @) i: ~. p3 @' t! j5 V* C
<statement sequence2>;
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else
2 M* T) U( G9 C! F+ q( n <statement sequence3>;, Q' ?9 G: Z; P6 X' I7 n: Y( s
end;
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: b5 j& a. \" c7 r+ I2循环语句. X1 Y1 l, Z8 c X+ _" |
(1) from <statement sequence1>3 L0 L0 R1 Z$ m! D1 C3 R
until <condition> loop
" O) I2 D7 g* j <statement sequence2>;
3 Q/ K$ Q; D6 ~1 { end;
6 m# y, u# G# D (2) while <condition> loop: s2 J% R/ _" ^) N. @( A
<statement sequence1>;1 C$ ^! a% ~8 z/ |6 K
end;
! ~1 h6 F5 e9 F) ~ (3) repeat - k6 m3 Z0 f; F: [
<statement sequence1>;1 `% k$ }: A8 z* ~1 q& M7 @# H7 L/ Q
until <condition>;
1 U2 @! I0 N2 S* T' X# `, O' @ (4) for <condition> to <condition> loop' f. {! h5 [; C/ ]- l
<statement sequence1>;
0 x8 x5 U5 a. d+ ?: ~ next; X, R: Q; U8 R( \0 R
3中断语句$ W5 s# x8 U( M( s6 D0 R0 T6 M' @/ l
waituntil <condition> prio <integer expression>;* U: e0 n' O* r1 k% q
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) K) I& h- [: B! O& \以上为常用的函数!
' z/ d+ `# D2 ?3 W* x1 ~- H还有很多,如有需要我把资料发到你邮箱里
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