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发表于 2012-11-13 08:48:12
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1判断语句6 W8 ~4 F& |) H, e/ \
if <condition> then$ n! e7 ^; H. w% Y6 h' U
<statement sequence1>;
9 B. P2 @* g# d* q& h t% b elseif <condition> then
& @4 T. W0 B; e+ S+ o n <statement sequence2>;0 X' x0 |9 ^- H
else 6 r. c1 K( v, t; Q6 I
<statement sequence3>;+ b% @4 a7 q# e+ W
end;
; `# {, e* A8 _) c+ [如果分支比较多，用：
" ~( [) n* H9 {' ~3 N inspect <expression>
4 d9 f m( C. B) N4 O when <constant_list> then; _" H7 \3 N. _/ \
<statement sequence1>;# H5 F" p: C0 ^8 }0 r8 B0 ~
when <constant_list> then
6 w6 H: |# w6 e% V5 d7 F <statement sequence2>;
4 u; K6 Z4 k: o. a4 E2 } ...
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<statement sequence3>; a% o( ]9 A3 }' z+ ?9 B8 C( S
end;
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; C& n! X1 T/ }+ U; }2循环语句2 g% x8 a6 T1 R* z- z
(1) from <statement sequence1>
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<statement sequence2>;
, h- _. f. I4 d& ^ I% `. g1 z end;# ]' u) F& }' P1 }( k3 w! u" e
(2) while <condition> loop
0 t6 F8 g m y2 D- L <statement sequence1>;
' A1 j6 X+ \. `6 d) g+ m4 K end;
8 Q* H" [! @$ E3 z (3) repeat * \7 [ Q+ v. V% ?) \
<statement sequence1>;
7 O4 N/ v( l( f until <condition>;
; s0 r1 v) t, y7 f% M( m0 S (4) for <condition> to <condition> loop4 i/ n1 o+ X9 Y2 E" Y
<statement sequence1>;
' t0 Z( ?3 u3 Y5 }' w next;
* H! W( N$ H/ t0 o" j3中断语句
) r! I$ B9 i$ [& u1 | waituntil <condition> prio <integer expression>;
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p( B$ y7 w% s( ?- I/ s9 N( O, s以上为常用的函数！
* V9 [! e z: W+ a' r9 d还有很多，如有需要我把资料发到你邮箱里 % f$ B! \7 e! j* ~+ f5 c: y
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