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发表于 2012-11-13 08:48:12
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1判断语句& R% ?2 K8 f `' j
if <condition> then
" |+ M$ Z1 R/ F* K. i <statement sequence1>;
2 D% o# U0 q, z8 i; b elseif <condition> then
- x, M) L: _1 n' ^+ o# o <statement sequence2>;
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<statement sequence3>;
' ]5 j) a0 `/ x4 J5 G end;, K/ k& w7 Y, Y4 b: K7 W3 {$ \$ L
如果分支比较多，用：' g) J' Z( m$ V* m N+ c' K
inspect <expression>
! Y2 `$ f: {2 Q6 `# p when <constant_list> then
1 X' v" W# \3 n) m, ^) V <statement sequence1>;
9 d1 H% I) f* Y/ x! q when <constant_list> then8 `/ @ Z ?9 L( S$ ]' W% H
<statement sequence2>;' z& I$ ]5 W. ^ x; y& A5 a
...
1 Y% _( h# ^$ F$ J4 N. A else
+ Z* K2 S5 \" G- M/ L <statement sequence3>;
1 ^, G S, C# e+ |5 ~end;1 U4 Y* c; _0 \/ d/ \, Y
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2循环语句5 W7 y6 i5 ?, B: m- x; |
(1) from <statement sequence1>- f: f' e0 c/ q1 ]; ?1 P
until <condition> loop. r' l* B) s- W
<statement sequence2>;
3 x/ m. I: ?: G% T# W end;' p: w( a3 `/ j! M( W
(2) while <condition> loop
4 {- n7 u$ I9 ]' P: H <statement sequence1>;
) e# i" c" l+ B9 b end;
. N3 Q- F) ]: q9 c9 U (3) repeat 3 S' X# F X8 a7 q
<statement sequence1>;
! z' R4 N0 Q. s' R3 q% P$ W until <condition>;# g# P- D1 C! \" f
(4) for <condition> to <condition> loop
4 r6 [% t2 K& l <statement sequence1>;$ ~0 N t9 e5 L1 D# m
next;
! H. Q# R4 q1 \% z* R3中断语句7 M% }+ e6 |0 z* K; g9 Q5 Q* p
waituntil <condition> prio <integer expression>;$ C8 t# T* X5 u9 h; O# H( \; O$ j
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以上为常用的函数！$ ?& E" v5 ~- m$ V- p; i
还有很多，如有需要我把资料发到你邮箱里 % R% k& \1 a+ x$ c) p: D
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