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发表于 2012-11-13 08:48:12
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1判断语句1 S2 j1 X* m1 h! s7 P9 Q
if <condition> then
]; m( h2 I0 f, G' E( j" Y [ <statement sequence1>;
& F% |* B! b, e+ d7 g, m5 R elseif <condition> then
0 ]1 ~9 b1 i3 ~' f3 w* A7 V <statement sequence2>;% B, K+ [8 Q8 R: T
else # H7 m% A% h. X6 ?& ^- r) K2 K. s/ v
<statement sequence3>;
0 g! g5 k# ]( v0 o* X9 m+ U end;
) U- I* X$ O$ ]& y如果分支比较多,用:4 j9 e0 @* h+ @8 F: `
inspect <expression>
7 J) A x$ u. q/ G4 `; M when <constant_list> then
( y6 j0 L% P3 I <statement sequence1>;
9 m9 U& H- x+ t% D1 m8 j when <constant_list> then
; b- _) L5 K+ P) K3 W; l <statement sequence2>;; X' n2 S/ |0 l; v4 r
...
/ S5 F+ v: x6 ?: ?- k% t* f( F else
! H+ E: Z! H; ^, [- ?( q <statement sequence3>;
2 O: L" W8 C# n9 B! {end;- K/ R( g3 t. V- x4 i" f/ d
6 V! X' }# o7 v' `3 ^+ ]2循环语句: x8 h6 z; `+ l
(1) from <statement sequence1>+ R1 v6 g* e& y3 J" |) z) T3 B
until <condition> loop3 u8 P5 y5 }0 f6 _! d5 X9 ^
<statement sequence2>;. s- P/ U: J( Z
end;2 E; p; R m0 [( ?
(2) while <condition> loop, U7 D0 {4 l; r( j7 L
<statement sequence1>;
- E2 j/ [9 \# Q) v9 {( Y0 F end;
- C% y& d" A$ u+ [% @% u! p (3) repeat ; G) {# N- h' ?( `& V5 g
<statement sequence1>;
1 h% G5 C7 O& R; J8 F until <condition>;
" o+ @2 j: E: O7 t (4) for <condition> to <condition> loop7 h( d$ ~9 T# \! b# J" S0 m% _) u9 P
<statement sequence1>;* O, G( }" ~0 I! Q, \0 E& e
next;$ B" I# Q) w& T& p5 S$ e$ ^) ?
3中断语句1 {4 b7 c9 N/ D4 S" U3 y
waituntil <condition> prio <integer expression>;
q' O0 ~- j# D, I0 }* S$ n; j$ S, o1 R" W
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以上为常用的函数!( f$ j6 }0 R. q. \
还有很多,如有需要我把资料发到你邮箱里
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