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发表于 2012-11-13 08:48:12
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1判断语句
5 w' `! y2 D8 | n" M6 Y! M& n if <condition> then
% T( _5 W( Z- R0 r# \ <statement sequence1>;
: ]+ |1 ^6 `, H7 G6 ~ elseif <condition> then
, T2 X& R3 r7 M7 t1 F" v <statement sequence2>;7 G3 _! m9 c* x0 G1 v7 }
else - C$ K# K2 i5 V0 ^" }' d1 p" k) N
<statement sequence3>;% w/ y; p1 M) o7 A! U3 I0 g) b2 _
end;! x2 E- X6 {+ G! d% K
如果分支比较多，用：4 \7 j: e u) _. E1 f7 Y
inspect <expression>' S1 V* [5 u1 \6 t2 g' t
when <constant_list> then8 Q* \% \8 o- }( r( D
<statement sequence1>;7 x, ? z5 s9 `& U% H! c
when <constant_list> then" t# K& p; ^# Y- u3 `$ X* K
<statement sequence2>;- `/ B, c' X4 m# ~! M9 w
...
" d" E# m+ ?, y" z0 S+ d6 ? else
2 e' \ V. S8 ?' r' D$ E8 ]! C <statement sequence3>;* j/ q& }8 A3 R+ T
end;! U6 z6 m" h; E F
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2循环语句, n# e" x6 t/ B; V0 ?
(1) from <statement sequence1>
$ Z. V0 M! U/ B$ E: h" K2 [" E until <condition> loop c+ y8 H' b4 W! D4 C6 X2 W7 s
<statement sequence2>;* l9 _' Z( _7 H# _
end;' K% D9 K- p; e, |0 c- f w
(2) while <condition> loop1 b: p0 x) g! p* u3 ]4 g- x3 _) P$ X
<statement sequence1>;
% l0 y( X8 b0 q( u( N& r" m/ m) Y end;
4 g* F4 W6 ~/ ?- {' S (3) repeat
2 d( I! N1 z4 A' Q. O% k. k) Z <statement sequence1>;
7 U' @0 I7 I; Q until <condition>;
; `" F9 ^. l8 p- h (4) for <condition> to <condition> loop) i- Z9 W( y! |7 M' I* j
<statement sequence1>;
) K6 H8 I2 ^# }' ?% b next;
0 w; N6 j, `0 o0 Z7 A+ U' i3中断语句
( C3 s4 `( Q6 g# P2 m waituntil <condition> prio <integer expression>;
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以上为常用的函数！# A9 N1 Q$ i! P2 x' @3 d3 }& |8 d
还有很多，如有需要我把资料发到你邮箱里 6 l! t- z# r2 U+ T+ z1 \- k3 \
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