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发表于 2012-11-13 08:48:12
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1判断语句6 A* [0 c- h" ^4 G( k; j
if <condition> then5 c, V3 ^+ _0 R8 R6 L( i0 ~ N
<statement sequence1>;
4 N- k; B0 E: N+ g elseif <condition> then
4 [% E2 M2 Q; E& x! V1 u <statement sequence2>;+ E! Z; I O2 H' H1 {2 z& V+ J
else 3 K( ?- k" T/ b0 R* a0 E/ Z: P3 k5 z: J
<statement sequence3>;
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如果分支比较多,用:+ |1 m7 C7 O: x. Q+ B: z* w
inspect <expression>
E0 k# A( g0 ~, C2 e when <constant_list> then) R1 V% M {* k5 X0 \- j
<statement sequence1>;/ @0 t, s! }* f2 x
when <constant_list> then- \9 q1 I7 R r: m k
<statement sequence2>;, h3 [1 r6 \3 j
...5 a( ]! D& [0 {0 N# \& o( j
else+ p$ p# i# |$ V- f1 T
<statement sequence3>;4 X7 p# n+ {' {9 S
end;
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2循环语句2 U8 a3 F$ @! r9 k( ]( J- B: w# g
(1) from <statement sequence1>5 p% L3 m- i/ n7 {2 {) A
until <condition> loop
+ J6 q/ \: W+ d% A" @4 k7 E: O <statement sequence2>;& J% q3 |, o" N, Y- j
end;2 E* l! h" ~, @4 n/ L6 S) n1 S
(2) while <condition> loop
7 y0 s: u5 F0 R5 n& o. H <statement sequence1>;6 y) l7 A2 X* F' s
end;9 ]- J0 [. M; r; k% ^
(3) repeat / I; l ?+ a5 d4 M
<statement sequence1>;
) l3 ?6 h8 p9 L until <condition>;
8 t0 m+ I! B, q (4) for <condition> to <condition> loop4 p+ g* o) Y- v- A; ^2 c" s
<statement sequence1>;
1 l; a8 _7 u8 I$ p next;
6 z6 Q. ^9 y' j3中断语句
) ~* n* w/ s) K9 j waituntil <condition> prio <integer expression>;! j5 P8 Z' V$ Z q( s+ E/ M
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0 S8 W* I# D& W) S" m以上为常用的函数!' J' Q# g X; Z5 ]* |
还有很多,如有需要我把资料发到你邮箱里 ' D, I* p' X: P/ R$ X1 F; }
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