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发表于 2012-11-13 08:48:12
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1判断语句
6 Z- f" t: @: i& ]0 D& W if <condition> then$ E+ o- p$ ?- \6 P+ L& P
<statement sequence1>;# s& g! V' y; m7 z4 q2 t1 _/ J! B- ]
elseif <condition> then# f1 l+ b3 y& o
<statement sequence2>;
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<statement sequence3>; p- w f# q7 \8 r7 }/ @, j
end;: y0 N6 |2 G' y+ I3 \
如果分支比较多，用：: L% ^' w& \5 F8 b1 Y& a# |
inspect <expression>1 f5 M' m2 a1 b4 S! @ j& W2 V3 x. D
when <constant_list> then$ B4 N! h$ ]7 A+ q( g
<statement sequence1>;/ j9 w1 \- r- j3 j" d4 p- ]+ H
when <constant_list> then" ^7 C7 [: `# I, @7 e5 H
<statement sequence2>;
7 |4 m4 ?. A2 C4 R7 N9 r/ }* |2 q ...$ [1 j8 f: g+ i; g
else
6 ~1 ?/ E9 ?* j( W: v* m+ j7 ^ <statement sequence3>;$ `1 j C& |+ z; J$ F4 C0 e
end;
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/ R5 s& }' O5 f6 ^2循环语句
$ D5 R$ F9 F' w5 ]; i (1) from <statement sequence1>
$ T9 `. l" s# H. e. r S; h until <condition> loop ~6 a2 ~$ o: W% ?, \
<statement sequence2>;/ p+ }4 f7 I) L1 D9 x/ K
end;
+ K: U0 ~; z3 O (2) while <condition> loop
, o ?. @, `- U1 d <statement sequence1>;
9 W4 e0 J* r3 h( W" x end;; U1 k7 a- z8 ]- Q$ f
(3) repeat
7 D f3 p7 E0 U; p0 A1 e <statement sequence1>;& F! e' X) a! Y9 K' y+ s" A# z5 K
until <condition>;
4 G8 ?9 @, C" F7 a. A$ A5 [ (4) for <condition> to <condition> loop Z" ]/ Y c( p0 b0 X2 `' n+ n
<statement sequence1>;
" d7 V; Z2 s% y% ] ~; q6 X! M next;
# L! Y' ]$ e0 s- ]$ ]9 Z3中断语句
1 ^' z" Z, M+ u* i- [* v- }9 E% t$ i waituntil <condition> prio <integer expression>;- t8 O3 R# U0 `* d8 g* V
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以上为常用的函数！' j0 M: G4 X8 a1 D7 ~1 t4 i3 o/ i, @
还有很多，如有需要我把资料发到你邮箱里
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