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发表于 2012-11-13 08:48:12
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1判断语句1 y# ]4 G: x: M" G% q' C
if <condition> then
4 G% m$ x2 z" o7 W* w <statement sequence1>;
- i; \3 t0 x, l elseif <condition> then
; ]) ?8 c3 P; Y+ H4 ]! d, w% i: x% e <statement sequence2>;. D. o6 D" G n: y$ K
else # j& _' Y: T; ^* ^& D2 x
<statement sequence3>;
5 t* n8 }/ r, R0 C4 R' F end;
( p9 k4 O5 z( Z如果分支比较多,用:, V- O& A( ?1 B1 ~7 H2 i
inspect <expression>6 B) ?4 d- a# I4 z- _* ]4 `
when <constant_list> then: p7 B- H; m0 C2 Z9 d
<statement sequence1>;
2 _1 ~ e$ x' R when <constant_list> then( |- E; i, c8 J' U
<statement sequence2>;/ W* z( ^/ e/ C0 \* s3 }6 r7 B: {. L
...% [# s& W; Z+ p
else
( W: y7 Z6 R' ` <statement sequence3>;, j% h! u: i3 R8 b& s: e& p
end;
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2循环语句& s) G4 v1 ~! s% t# Q
(1) from <statement sequence1>* p8 Y, x- y3 d3 x4 y1 ]' o
until <condition> loop I$ \" ^; N2 k7 o; @$ C
<statement sequence2>;1 D1 [. e9 c0 f
end;' W/ h8 F+ D& f! [8 @
(2) while <condition> loop
$ D/ o+ q$ b E3 K6 j <statement sequence1>;
1 z2 p: `& H4 o( Y9 H end;
8 P7 J k! o4 u- y5 d W7 Z (3) repeat + E# C3 C+ H* b6 }+ e/ ?1 r
<statement sequence1>;1 f; u" X' H8 g. K" M
until <condition>;
. {- K: S1 Q5 u' A (4) for <condition> to <condition> loop
+ f9 c* r) W' B# L! I5 x3 L! J <statement sequence1>;
: Z* O8 A q6 q, C* v next;
+ D9 D" F$ I# w: y3中断语句
5 W d' A9 Z+ y9 S, F waituntil <condition> prio <integer expression>;1 ^+ o+ S# X3 h
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以上为常用的函数!
1 z( T; Q) R' f' P2 q( W5 f还有很多,如有需要我把资料发到你邮箱里
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