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发表于 2012-11-13 08:48:12
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1判断语句 T% s: R5 M0 u4 Y' O6 e
if <condition> then! q* E+ D0 E! D# q8 {: X8 D
<statement sequence1>;
4 f; R* W# W9 X7 X: E' A' ~ elseif <condition> then* b" d$ M2 b' D
<statement sequence2>;
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<statement sequence3>;6 Y) |" p" V0 `; N. X
end;
; X3 {8 M: Z, c; _如果分支比较多，用：
# s5 |. ?6 k- w- @ i& H% n' F8 f inspect <expression>
& E3 f D. k4 q' H9 `( o$ D# B when <constant_list> then" U# A9 C/ J n4 }. O: d' Z
<statement sequence1>;+ g5 p9 H3 H$ [% R) E
when <constant_list> then+ T! P9 M& b H# d3 Z) O: U9 K$ {) e
<statement sequence2>;
4 ^7 j! h: K+ n, I ...
$ z; Z1 _( \; D: q' q else
! ^5 m! u' L( S$ ~ <statement sequence3>;
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3 ?: N5 A6 V7 o# s' {0 Y2循环语句
5 M6 G* D0 V3 D; y; Y i (1) from <statement sequence1> w" S% `/ a6 v, h& p
until <condition> loop+ q' K3 l! J: ?+ }
<statement sequence2>;! c. w% I) I) ~
end;
' h9 L/ j, S t# D& V I% _( R# c# ^ (2) while <condition> loop
8 z( U% a! T( x: V8 E! ] <statement sequence1>;
% h) \1 A0 U! ^7 x5 I' j! O/ Q end;
" b1 O1 e P! z6 z (3) repeat / U3 T& Z* b0 i% q% A
<statement sequence1>;1 M) E0 K8 G7 A2 f2 u) {
until <condition>; D& q+ j& T6 s7 {3 z) ^9 e+ ]
(4) for <condition> to <condition> loop
0 ~6 T4 _1 T$ ]; K <statement sequence1>;' [ x1 w" C2 }3 i% y4 M
next;
7 N. f8 K2 n& R3 {- s0 J9 z3中断语句
) |- m* Z2 g1 l" A waituntil <condition> prio <integer expression>;
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以上为常用的函数！
9 H/ v" Y+ b4 @还有很多，如有需要我把资料发到你邮箱里 ' z+ x( Y( @+ H, T2 @, X9 o$ G
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