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发表于 2012-11-13 08:48:12
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1判断语句
5 i) S$ x; S0 L! U! n if <condition> then
7 C8 p; }5 N7 v: [% a6 c <statement sequence1>;2 x5 ~$ y" W+ e; P
elseif <condition> then
' X0 M' E; O8 Y+ B" ?+ f& e! l <statement sequence2>;) I) G' G7 o/ f& k; j5 c4 A/ ^. U( ?
else # U" h( Q, @3 W) O9 T
<statement sequence3>;
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如果分支比较多，用：
* }. O- N5 e- @$ i) I inspect <expression>
/ V! O' x% e6 w5 @ when <constant_list> then
6 ~! D* T' y$ H _/ _ <statement sequence1>;- F# }' `$ y0 Z; C x
when <constant_list> then
: ~ q8 w" H ?% h9 J9 t% g <statement sequence2>;
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else3 W7 y) E$ O, T6 a3 W
<statement sequence3>;& C7 |, o- R) S$ u) n3 b8 q! s
end;
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0 L q$ I; V$ o; g; m) U( v( Y2循环语句
0 d5 K2 P) b' e2 M, h0 q (1) from <statement sequence1>
4 `3 p! `. l% B ^9 z H3 K. ^ until <condition> loop" E" w) F; e6 B. O) M& g
<statement sequence2>;
3 C! v; l: @0 H end;
& d' ^* F2 _9 f5 y; J7 a (2) while <condition> loop
; }$ U* q) y, O& ^! c/ M4 k% ~ <statement sequence1>;$ K2 c: X) B v. U3 b
end;
& S! M! {' t5 M+ j5 y( ?# D (3) repeat
* Q$ @9 _: C( S; r <statement sequence1>;
# w9 Q, ^! T+ ~ until <condition>;( C& _7 E2 l8 M# [3 Y
(4) for <condition> to <condition> loop7 K/ m9 B# ]) c# d9 |# s3 i- f
<statement sequence1>;
6 t4 {& P7 d+ n/ i: ~4 `( [ next;
" r* M$ p! ?5 b7 c6 ^2 K3中断语句
" M% W, ^0 W' h2 m waituntil <condition> prio <integer expression>;1 T$ \- q7 I( f [0 N8 q q1 W
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以上为常用的函数！
' d( t r3 ?& Y, { O- n% ~3 ` q/ z3 R还有很多，如有需要我把资料发到你邮箱里 j2 U2 p$ i, E5 L4 {
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