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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
4 E7 h9 x! t9 Q0 T0 c; S! J if <condition> then' a$ m" e7 A! |5 L, `4 a! `
<statement sequence1>;
$ m$ l3 \ Y' E; M) u# m elseif <condition> then% K; X2 ^4 I& D* E$ h3 M& m- Q! @
<statement sequence2>;( _2 ~; p/ e6 y
else
: s5 n# e/ |. M3 u, I# L# k/ v6 r <statement sequence3>;' R: T% @/ F- p2 M
end;) r f- @0 ]+ K4 R
如果分支比较多，用：1 N& B( C& z4 d7 i. l0 I
inspect <expression>+ c9 B' L+ @9 i. @
when <constant_list> then
1 g) D# x3 y! w( J6 E <statement sequence1>;
' z9 ^0 O' j/ \3 {0 d when <constant_list> then
- Y+ D) L5 `4 J6 y) B; v# Q <statement sequence2>;3 t: Y0 q7 c. {
...+ J% ], M2 P" J. D' p) j3 ~' g
else
/ H. ~& D, g4 j3 h' I <statement sequence3>;6 T& P3 Y# b/ G
end;! U6 }2 o6 @9 B2 ]" ^
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2循环语句
$ g1 r" j6 T( I! \) ] (1) from <statement sequence1>6 N, V6 ~4 ~ ^" o0 f
until <condition> loop; S% j% o, P; z7 X- L+ U; T
<statement sequence2>;1 p! g, W# {/ W ]$ [1 H% z
end;$ h* x$ e' U6 e; E r
(2) while <condition> loop u# F0 J: @; S1 i$ ]
<statement sequence1>;" r) U9 o" Q$ M+ ]. E
end;5 P+ l) g* c( l
(3) repeat # G, W5 W& g& t% f
<statement sequence1>;8 D9 t" A9 t# }( }7 ?8 z
until <condition>;
3 [5 r ~$ n# F (4) for <condition> to <condition> loop( S1 j* k3 b, f) s( z# R" F
<statement sequence1>;
3 h% }$ s4 Q6 x U1 _ } next;6 ^ O1 `2 M& b
3中断语句7 Q2 v4 e" A- ?! Y
waituntil <condition> prio <integer expression>;8 z; D* D' _1 n8 I6 D
" {9 [; P( u* S7 c" G2 |* r: o
: }8 ^& j& Q( @( X2 O7 b! c# l以上为常用的函数！7 {. W3 i4 z v3 [; l
还有很多，如有需要我把资料发到你邮箱里 " h( ^+ s5 {8 r# L6 _3 Y
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