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发表于 2012-11-13 08:48:12
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1判断语句
% H. c( { x+ c! ~3 ?2 r- q if <condition> then
7 o" @8 k" A; S- t <statement sequence1>;, O8 L! ]& r+ g' R
elseif <condition> then3 ]$ Q# T0 n' t7 R- w& _3 D$ X
<statement sequence2>;$ ^1 Q+ {# ~( t; Z7 f8 [
else 9 i' f4 A1 F W" y( d! B! I* }0 F
<statement sequence3>;
`0 E4 ?2 z4 _' T) a/ f end;8 ?" e5 G8 K$ ]2 P/ Q
如果分支比较多，用：
+ W& l; p! t P: V/ f7 o7 x inspect <expression> K: k: a- y, G* m$ n) M
when <constant_list> then
2 y+ s! Q3 `+ M! z <statement sequence1>;! g6 E/ `3 }, z9 {" _/ X% N
when <constant_list> then' Z0 W- d4 C& i3 H
<statement sequence2>;
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else
" z, P% p8 d' j% M, I$ ?" T <statement sequence3>;0 j0 S. q% o- ?) V# Q/ f
end;
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(1) from <statement sequence1>" G% n7 Q# P( y- C
until <condition> loop9 D4 d) E: J) V; K3 F) M: ~( N
<statement sequence2>;1 {: k0 x& V8 K- i
end;
- r; V" c9 B+ g, ~2 s8 e8 C (2) while <condition> loop
8 A) H- h8 }0 s3 E <statement sequence1>;) S/ H3 ?3 f5 l- t# X6 ]7 o' z1 c
end;' l7 `' D8 j: A/ Y
(3) repeat
/ @& r! m" c& E& i0 r3 h& |0 x <statement sequence1>;
# b( _/ D/ @: y% g D until <condition>;
: S; N* F7 W, l+ A (4) for <condition> to <condition> loop
' d, r" p: i7 L" U* E <statement sequence1>;7 }' N( s0 I" h# J% N
next;9 A8 Q+ O s0 m" l
3中断语句6 }3 `' a' ]2 J* ]
waituntil <condition> prio <integer expression>;) B- {! H* v/ Q% V# A
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以上为常用的函数！
2 P5 \' x n# A3 J, ~还有很多，如有需要我把资料发到你邮箱里 # B: H. E0 V& m) k. n% d# {( E% o" n
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