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发表于 2012-11-13 08:48:12
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1判断语句 l0 W% ~+ b, U8 d/ N% u
if <condition> then# m7 F$ U9 f7 V7 h# C9 }0 q
<statement sequence1>;
/ X- {0 c8 {- S, o elseif <condition> then2 k5 ?3 S; ^; G; ]0 ?
<statement sequence2>;
* [; M( v1 `% ]3 s E& @4 v9 f9 L else
, n# R3 }; {) n9 w/ P <statement sequence3>;
8 @- x- Q% X7 ?/ c `4 [! ] end;8 h' M, r6 C6 ?! e6 R
如果分支比较多，用：& K6 H! j, q0 Y' j
inspect <expression>
6 ?% f; y) s# K9 ` when <constant_list> then
! ^$ h6 M" e5 c; r" a: Q <statement sequence1>;
6 }- A+ A+ V; y when <constant_list> then! ^; ^6 A) @% S6 T' ?5 H( n" W
<statement sequence2>;
" M( v8 Y ?9 E& N0 [5 m- m ...
8 W3 P4 y, k$ R) ?& U$ o else7 v3 d* G/ Z v! i6 ?; B
<statement sequence3>;
6 |7 h9 w4 n5 j& W6 m; @) o Lend;9 @1 C$ E( O) t8 k; Q4 ~" x- s3 ^
! k4 @- L6 ^4 Z9 w5 F6 g) D9 A2循环语句
# ~! G. D! s$ @/ b# X! N+ | (1) from <statement sequence1>
$ v. D8 M" {- C& \1 ]( j' x until <condition> loop
0 y$ R$ b3 F" j$ P& |) } <statement sequence2>;! M* e7 N0 o* \& A
end;
2 k: S) [0 ?& e( m7 l2 \2 y (2) while <condition> loop i0 X7 p# d O7 J" j7 Y) l
<statement sequence1>;
: @3 X! n. p) I, E end;
- l/ C+ q8 D d9 y" G (3) repeat
0 O/ k$ M. k/ S- Q( ?5 o <statement sequence1>;' Z+ N7 P( }; a, j* j% ~* Q% m1 Y8 R
until <condition>;
! v# B% T; I1 o% h, N2 H$ x (4) for <condition> to <condition> loop4 M3 I' J) G) |9 f
<statement sequence1>;6 t2 P/ c8 e4 }
next;8 {; k. G* H) }. C% I
3中断语句
; y" [4 ]0 q+ G6 b waituntil <condition> prio <integer expression>;) \, k/ f7 @5 k+ [* B: s
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, n5 ^' N% b* s2 H5 W% Z3 u以上为常用的函数！
. J6 s* n. y# f8 F还有很多，如有需要我把资料发到你邮箱里 6 s: H5 j/ G% }) S! e- i$ A
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