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发表于 2012-11-13 08:48:12
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1判断语句. f# K& ^$ b* M& V1 b
if <condition> then
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elseif <condition> then- O4 D" m( y4 b" T B* e6 ?6 f
<statement sequence2>;
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<statement sequence3>;
# P$ E# \5 h N# l7 t( M2 x end;
6 y1 Y- V% v( v( G; S如果分支比较多,用:( s+ a5 i% }* E& P
inspect <expression>
3 e6 q' R v3 ]* ~. F l& P when <constant_list> then
: V4 N; S( f# u1 v! ?2 I, N <statement sequence1>;
$ a* S) F2 J! a" H$ J when <constant_list> then P. g" R' K# Q. `2 w# L* Q
<statement sequence2>;! t. U* C: c, S5 W, F; t( m
...
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<statement sequence3>;: d" f' L e+ n z3 y5 O
end;9 s* H" @, Q( a$ E+ ]
' f9 d8 n& Y6 ?' V& F2循环语句
! D( N x4 I8 `4 s/ x! j, f* q' o (1) from <statement sequence1>! ~) e* \& F& \+ |# h2 ? S
until <condition> loop
, x" H+ Y% G# ~/ @1 h# _ <statement sequence2>;% a& l- B2 ?/ X. v
end;" l9 H7 U( W% E0 g4 p
(2) while <condition> loop
8 Y/ Y9 A* Z: d# X <statement sequence1>;
1 G4 H$ f1 Q( Y# ^5 E+ C end;
% b- @" R% l* V (3) repeat 3 P3 m3 O: c: U) P, ]; Q
<statement sequence1>;
; l1 e4 k# q2 X% r& a until <condition>;
) l( F* x- {* I9 A (4) for <condition> to <condition> loop
( d: e& s4 W( t+ Z, c, D- o <statement sequence1>;
$ t! b( L* Y; V1 K. [( f* b, c next;+ c) x' d7 w, t G7 Y( @
3中断语句* c2 K$ A/ v7 z& v& O/ ~# T, i) @
waituntil <condition> prio <integer expression>;
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以上为常用的函数!( `1 ]5 v# E# _6 W
还有很多,如有需要我把资料发到你邮箱里
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