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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
$ b8 R2 b+ s+ @4 n if <condition> then6 P* v# a! u8 K- D I$ F7 p+ x
<statement sequence1>;
) q' X7 j/ ~! e/ | h elseif <condition> then
8 p! q) F8 g( A! D- c e <statement sequence2>;
8 t8 F/ ^8 ^$ m. o8 c, L% H3 | else
$ B$ C2 w0 M; f0 O, u% Y <statement sequence3>;
$ I. [8 L; M" J: F+ _# h7 {2 Y end;
& `5 S5 [: Q8 B/ q4 S. ^8 F& P O如果分支比较多，用：
4 v1 I L- n& ^% m' N D4 M inspect <expression> x2 D: z( W8 b8 Y6 K T
when <constant_list> then
0 i' O: R2 R" o& r <statement sequence1>;7 w& q' F5 o7 \$ F, t C( m
when <constant_list> then7 v8 i4 {( C2 Z1 {9 p: j. O
<statement sequence2>;
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else
1 ?4 v& V- |. R& G <statement sequence3>;% V ^7 k) _! _/ s. C8 I
end;
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0 V; M- O/ t, P6 C+ ^% y, p2循环语句7 a8 Y( P* `/ c7 U
(1) from <statement sequence1>! M. O0 c0 c! }, }, M
until <condition> loop4 ^% m% T7 w; Z& q! e
<statement sequence2>;
[+ q- G- Q5 K& ?1 S* T3 s end;
' w9 ^% g' }- f% M/ Z$ M (2) while <condition> loop
2 @% L2 c" }3 {8 M- I# n- W <statement sequence1>;$ Y( l5 ]! l7 g( \, T) ?$ w s
end;
+ J' R$ J6 h/ C: _7 K- b. T (3) repeat l% i( l" d) ^% F* z
<statement sequence1>;
0 z% s9 {2 h& a% x2 n until <condition>;$ [; B; ]3 y, Z H$ a g! |
(4) for <condition> to <condition> loop) ^+ x; [2 t& ]6 v- B8 T
<statement sequence1>;
/ U! W) p' {$ C+ b next;% f9 _7 ?* _! ~; t- B( o
3中断语句
$ n% w% ^1 B# L3 _3 w9 ~4 P( a7 O waituntil <condition> prio <integer expression>;
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以上为常用的函数！9 k/ g, S; f A) k8 T
还有很多，如有需要我把资料发到你邮箱里
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