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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
' a- ]' e7 q, N H0 h if <condition> then+ u) ?3 a1 Q ~
<statement sequence1>;
6 U$ X. X( X ~( ~* r elseif <condition> then
( N" P7 i& R$ @0 e T# m <statement sequence2>;
" V V: B9 [; s. `: k2 H else
1 \3 X5 A0 Y9 D3 w5 N0 K <statement sequence3>;! X% u1 h y. J% Y* P: N1 G
end;
; d" Y: H. y b) E/ x, w如果分支比较多,用:7 K4 S2 I5 |; I4 o' B4 d
inspect <expression>
8 t6 k7 j5 o- ~6 \. f: T when <constant_list> then) e9 n, N" f0 B e9 |
<statement sequence1>;. q- q& m c9 U8 a3 ]
when <constant_list> then
/ i& k( b) n. w" Q" v <statement sequence2>;9 f& h$ C7 k$ l1 i' f
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else
( o* ^: A- n$ O" Q, J <statement sequence3>;' {4 I2 j! V: Y! r# R7 s
end;; T+ E6 @1 H0 X7 ~# n
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2循环语句
6 ]0 i: K. I% p. I8 W (1) from <statement sequence1>
$ q! \' n5 Q. T* N2 } k0 s: b- L until <condition> loop
5 {9 k, u# p5 ]* C <statement sequence2>;6 i3 _% i8 @% E z9 d% T1 J2 y
end;
5 V% {$ \, y5 W6 j (2) while <condition> loop
. Q2 F, _' ?" Y& z1 G6 H- K <statement sequence1>;* [/ o7 k; e0 m3 k' B2 C) d
end; y! Y- f3 ?1 e+ z7 C
(3) repeat
' G/ C7 [% a& P <statement sequence1>;. ~# k3 X& ]0 M5 g3 R1 y
until <condition>;( s1 \+ W" g: P3 A
(4) for <condition> to <condition> loop
/ X, X0 Y, Q! X' U8 o9 _ <statement sequence1>; o5 i- ?% h; Q q
next;$ a% ~" w0 Q8 `. X( w
3中断语句7 M8 P; {6 f/ k
waituntil <condition> prio <integer expression>;" _# H4 `6 A5 j
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以上为常用的函数!5 @7 S0 a, U; _/ A
还有很多,如有需要我把资料发到你邮箱里
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