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发表于 2012-11-13 08:48:12
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1判断语句
- F1 g. c. _6 w) m6 e$ x; A if <condition> then4 T7 ? P- v Y' J9 C: v' i6 \
<statement sequence1>;
1 N, {# e) D+ [! I2 L elseif <condition> then
, Y% q. m" g* a <statement sequence2>;
( N3 P; A+ s4 K! e+ @ else
; @: I" p3 v1 z. p; e7 d <statement sequence3>;# {, B" |" b& h7 _6 R% y& A1 g
end;
! u8 ?4 w: [2 ]! d) y如果分支比较多，用：# c' S: M8 `, ~$ `( ~
inspect <expression>/ y3 c7 j/ `4 ^' s+ L
when <constant_list> then6 l" {7 @5 z( q: h) c9 E
<statement sequence1>;1 ?7 J8 U& }4 Y. v- G
when <constant_list> then. q; X+ P1 _. s) ~+ A
<statement sequence2>;
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else$ Y; B8 x1 U% ]0 j: a! Q
<statement sequence3>;
1 f9 R1 K& c: F0 rend;
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+ v. }& a" g& B7 B( Q2循环语句
" t& H& d. n# k (1) from <statement sequence1>- I- ^; E9 `- Q/ k6 y& F, q
until <condition> loop- L; Y7 F' V1 r: [, g4 g; S
<statement sequence2>;5 G+ j4 T; c$ C) n& ?+ W- `- d
end;
7 |* ^- t9 t( t4 \- }) g9 N! ^ (2) while <condition> loop
# d5 O4 } `5 k* K9 } <statement sequence1>;
) P, [5 g W) N+ |% B5 G end;
) v8 S" v6 o' o6 m6 ? (3) repeat
; B+ G8 u# y) X$ ]+ w3 T <statement sequence1>;
9 d' s; F0 ^/ |& j, f& t9 M$ T until <condition>;
- }' L7 Q9 q2 U (4) for <condition> to <condition> loop) g& P3 g7 z+ l! B4 s
<statement sequence1>;8 s3 W, C) i; f# L2 S: d' K
next;
W \/ Z0 Z c r( @3中断语句
7 M' F9 f- }* a% F: j# z6 ? waituntil <condition> prio <integer expression>;" y7 D( M4 }& f8 D! g! X. p$ V
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以上为常用的函数！
9 }5 L/ Z7 G0 y还有很多，如有需要我把资料发到你邮箱里 1 \# X- ?% i ]" O
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