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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句7 z& [& u `& E9 P
if <condition> then2 n, U$ d2 e1 j2 |, e
<statement sequence1>;
7 m3 g4 D3 {3 v elseif <condition> then y. c% F$ x6 Y3 f0 i( |, i
<statement sequence2>;1 r1 @- K7 ^1 c! L
else / V) z+ z8 E; z* k2 r6 ]. `. U
<statement sequence3>;2 p; ^3 E1 q! D& K* |: W5 ?
end;
8 {: D- u6 S) ?( ^如果分支比较多,用: s- l1 Y. k N j+ B7 [" j' v
inspect <expression>
! D4 d- |' v1 l& m5 r; x* v8 N when <constant_list> then+ h. o) f% [" I0 X) [3 L: y9 J
<statement sequence1>;# f% z1 b" r; x
when <constant_list> then
3 t; a; ?9 I) n# d7 F <statement sequence2>;
( O. t6 `4 S3 D& i ...
+ _ M3 y* |/ R+ Q8 K s$ P else6 A6 c2 o& N, S3 g3 Q
<statement sequence3>;5 R5 H1 G* [: _5 I2 {
end;6 c4 Y) h+ A: {5 ~# u9 u$ _& F2 V
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2循环语句
`# I- @0 e9 t& \ F (1) from <statement sequence1>
" N r. y* ^; N' }9 S, r S2 i! x; u until <condition> loop
' @6 K8 m3 r# W/ _9 M& V) v <statement sequence2>;
4 L8 P# i7 o' [2 z* R4 p2 D, D end;
9 n5 F: U/ G, A0 _0 Z (2) while <condition> loop
' S( N. p8 }8 [ <statement sequence1>;) M; e* B6 `. A4 m5 F, C$ o
end;
2 s1 O5 y* S# V" W (3) repeat + r" z! d- L6 M U; ?" i8 r
<statement sequence1>;5 ?$ W8 a6 T5 f. |1 J3 x
until <condition>;) ]8 `$ D3 O7 C* I; B- J
(4) for <condition> to <condition> loop$ q6 F9 _( d, {/ E, ^
<statement sequence1>;! l' I! g, u: b$ |& B* B2 r
next;9 H. A, ` Y; u: h* o& l1 a% Y9 z" R
3中断语句) I8 {* D3 `; B! \. M. P, ^
waituntil <condition> prio <integer expression>;# H$ f! y( ?, J9 A6 X; _
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+ C, ~5 O) ?7 p' |! J! i以上为常用的函数!, Z/ t" y% S( E4 E) K
还有很多,如有需要我把资料发到你邮箱里 $ {4 E7 Q4 \% s Y
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