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发表于 2012-11-13 08:48:12
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1判断语句
7 {1 V6 M' u$ `, O: Q if <condition> then
4 B1 F1 M% ^2 k, k$ A H4 x8 j3 l <statement sequence1>;- N. }; F2 L3 d- q0 T, S( P0 ]
elseif <condition> then# U/ f5 L3 x! d' H# n
<statement sequence2>;
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<statement sequence3>;2 m8 v S! p8 y& H
end;) r- y% K% M) D
如果分支比较多，用：2 A$ u; u/ c" W* {, k3 t9 W
inspect <expression>$ d6 V- T$ S- l# X3 v$ Z
when <constant_list> then
) \6 F) m5 D8 S7 Y/ P! S% c <statement sequence1>;
) s# G: {) r3 e, F; i% A when <constant_list> then' d6 l% x/ }3 h0 J
<statement sequence2>;
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else
' |% }6 u" h9 `0 z <statement sequence3>;
8 n2 o8 L% Y# Z* Q- ?. Nend;$ F4 z r! b4 P3 s f
5 j% z8 S w" t8 ~) }2循环语句, o8 S. n# e3 o- W1 E$ B
(1) from <statement sequence1>
9 m7 t" H/ O1 R, X8 E0 O6 i until <condition> loop0 I# {( B$ N" @$ B) k+ ~+ `$ ]
<statement sequence2>;
4 F2 ^. f r2 g+ E/ T# i( ]$ C end;
: C6 W& r0 T! `$ f4 j. C5 K4 k) \ (2) while <condition> loop( H2 O/ X$ X1 L0 H3 t# a0 F7 P
<statement sequence1>;5 l" Y3 l; l8 L ?) {
end;! z+ a: J& g, ]5 [: X% U0 C# J
(3) repeat
3 h! ~# y( P! A) n/ y <statement sequence1>;
! Y) j) {8 m+ g7 z: ]* V( Z until <condition>;
, h Y8 C4 {( m; H M5 ]1 k (4) for <condition> to <condition> loop5 \' |( a& v0 c3 t E0 x
<statement sequence1>;& M w/ {' a+ T/ T2 j+ m$ ?
next;
6 T/ ~2 A. x2 A$ X, H( }3中断语句4 |% t7 S* k6 O$ }# F1 f
waituntil <condition> prio <integer expression>;
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以上为常用的函数！+ V2 e5 q4 `! g+ y: l) I
还有很多，如有需要我把资料发到你邮箱里 : I. \- I1 m, q! J; T
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