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发表于 2012-11-13 08:48:12
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1判断语句 V3 T) o1 i+ b2 P/ l R
if <condition> then' K" x. v/ a6 e2 K7 A
<statement sequence1>;4 D8 z2 Z- u+ B, [' z; o, {4 ^' L
elseif <condition> then
o! i) p3 ^/ t# g0 L <statement sequence2>;
: i8 U" J) O" ^/ h) G' A else ; {8 W2 ^% H2 ?+ c$ v4 b
<statement sequence3>;1 T3 c( H0 V' W7 Z3 Q+ g, b
end;" P+ \" s9 S/ ^, F' ~: M
如果分支比较多，用：, O4 ?) x- G" |9 Y4 j6 K, C
inspect <expression>3 b' T. b$ y0 q3 n- f6 q+ I
when <constant_list> then
4 e, b7 s( y& ]7 T2 ]1 V <statement sequence1>;
! @; @7 ^7 G8 R7 y8 B when <constant_list> then
! g) x6 V$ ?; _! Z( j' u% `: u <statement sequence2>;
4 r1 g' O g& x1 s ...
, r/ U# O' b3 Y6 M9 `7 Y6 L& v else
; z: l+ K+ i, T6 j. v <statement sequence3>;
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0 x: Z; }/ ]5 I& d9 x c/ S% u, E8 I8 Z2循环语句6 M7 u8 X: t: J, Y1 B" b
(1) from <statement sequence1>
" `) K; f6 `! Z' O, R1 E1 ^9 B until <condition> loop
' J& @- X. T- S* r% u: w <statement sequence2>;( K/ m% N G- |) S$ S
end;3 V4 d9 y' H5 p9 j
(2) while <condition> loop' G0 {- r3 v* ~$ k
<statement sequence1>;1 ?5 d6 Y$ D" l) D7 ]) U
end;
1 h! V v$ p/ r) t: _' d* Y8 R (3) repeat ; p: V8 w9 b7 L$ H' |
<statement sequence1>;
5 G2 Y6 r& B+ p- L" @ until <condition>;! v9 `0 n0 V& z" e/ F4 L8 s
(4) for <condition> to <condition> loop
/ [/ ]; e3 @" Z5 \& h <statement sequence1>;
: x. z. C; R( V5 D; X1 Z( V next;
$ Y$ s+ F0 j6 a5 H) D: r# o$ w3中断语句
" q$ i0 v! M! |( d! G waituntil <condition> prio <integer expression>;
9 G: C7 G: F9 t0 R1 N. E8 g. s5 V9 `7 Y! O* u0 `& H* \0 ]
+ x# f( N6 M; ]6 |以上为常用的函数！
: h: {7 [' B" g还有很多，如有需要我把资料发到你邮箱里 % t2 c2 v5 ?# w( g4 r! N. m
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