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发表于 2012-11-13 08:48:12
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1判断语句3 f! c) a$ ?: a* _! b
if <condition> then) U2 c! a& `5 k% B, w0 _
<statement sequence1>;
- r, Z$ D+ [" ?% S9 ]. h5 m1 A elseif <condition> then
4 q9 A' V9 b c" [* u& }4 Q+ { <statement sequence2>;4 O3 Z2 L3 @2 i( [; v
else
7 R% E5 ~- u5 Z4 T6 M/ y1 t' ~5 R <statement sequence3>;
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如果分支比较多，用：2 |2 h$ F" n u; y3 ]
inspect <expression>
" a4 L# a! n* r/ R; M when <constant_list> then7 K: S% J. @/ ]! K) D
<statement sequence1>;
3 t: H1 k- o" V% Q when <constant_list> then
: Z5 M& W6 i' H0 `& o" G% { b <statement sequence2>;
4 \2 V; V& d3 p ...
4 d. s E5 w4 f+ u, z2 F else
0 @1 f) M" Y1 u7 C3 M% q2 S <statement sequence3>;! b/ l& V3 O) |/ p" e
end;
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9 g, k6 I* H3 T% Z9 V( V2循环语句7 Z- r- [/ x- u, h& ~
(1) from <statement sequence1>
/ ?7 `; A' j: Q% s8 r until <condition> loop
8 h& k t3 D( `" ^6 t/ z <statement sequence2>;
0 l8 h! P+ B+ O end;4 J' w2 F7 J0 }1 A: {" g
(2) while <condition> loop; X% ?$ m) i. L: u3 S
<statement sequence1>;
. s- v5 g7 d; y# h9 b) y end;
Y# }5 ]9 K! l (3) repeat
, h% G( `6 H# t% Z, T5 m9 h% n <statement sequence1>;
) Q. S" L9 h$ P& [4 V until <condition>;7 c3 z8 {( A0 `6 w$ }0 }
(4) for <condition> to <condition> loop3 f3 s2 M3 c- r' v1 ^
<statement sequence1>;
5 ]7 B8 y; v6 p: Y8 T5 @" X next;
- g/ B0 o4 g. L8 l- G3中断语句# a1 _5 A- ~2 A
waituntil <condition> prio <integer expression>;. N# g5 @) E& ^+ j
3 ~" D+ z* ` S/ v# p& R" t* Y/ L3 _
* X+ m% q% i' S& E9 @* h+ q" C: v+ {以上为常用的函数！
9 ?+ h7 t& M2 N7 X9 w* E还有很多，如有需要我把资料发到你邮箱里
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