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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+ q8 A9 j3 B* Y8 b2 X+ t% n
if <condition> then; `# Q$ j ^" g: d$ [; y8 ^; `0 w
<statement sequence1>;
6 k% M! x' D3 k2 o elseif <condition> then
; e9 {$ G) |2 g; o <statement sequence2>;5 c+ }: X: [1 s
else 3 g% K, k9 U# B5 ?; h6 I
<statement sequence3>;% i; `% L+ ^/ E2 m1 D+ a0 j5 ~
end;5 }, ?/ S3 E+ w# g- w) ?) ?! J
如果分支比较多,用:5 i, T2 ?- ]! A5 g6 L7 q5 Q
inspect <expression>9 @( l4 F2 B8 o% z6 A1 a
when <constant_list> then! Y3 ^: h- T# }, @
<statement sequence1>;
; v, k7 |3 g: L when <constant_list> then; ?5 p6 `+ |- k# E% a* M3 n
<statement sequence2>;
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else
5 }' M0 A, }) p2 q g% g. M, k/ T <statement sequence3>;
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2循环语句
& H q; O+ f T (1) from <statement sequence1>2 O; x. O4 ?8 I& S- ?
until <condition> loop+ h/ n- S% S6 a, n2 H8 C7 z# N8 v8 S! O
<statement sequence2>;( z, U6 m0 ^( o" `; h2 R6 I
end;
2 q% N1 D% O) O2 R8 ^0 H (2) while <condition> loop
' Y: `" L1 @8 h; j- R6 W ~ <statement sequence1>;
- y" Z- w- B$ Z4 ? end;
9 t5 b" \9 }) w (3) repeat
# z% U0 M1 a" j6 a <statement sequence1>;! o' U. u4 N1 B* Q: t
until <condition>;
g0 F: M' `, V" T5 M* N. u% W (4) for <condition> to <condition> loop* Z" U" I. I3 d
<statement sequence1>;
( E5 Q5 {5 @6 F) F. } next;
6 h5 \8 [* w8 W# `3中断语句
8 K6 A+ K% ~& Q# \ waituntil <condition> prio <integer expression>;
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9 M; P0 ?+ T, W以上为常用的函数!! z/ S. \4 _2 ?; U% @ F
还有很多,如有需要我把资料发到你邮箱里 ' {! m9 t4 O5 O) n
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