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发表于 2012-11-13 08:48:12
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1判断语句* b% h" R' q. d3 B! i
if <condition> then. }$ r5 P9 F T; l% r
<statement sequence1>; I* {9 ]1 L, K% @
elseif <condition> then) S& {, s" p4 X/ ~5 m
<statement sequence2>;
) r; Y# n" ~' X6 S2 @% P else
l7 a u b+ G+ W6 w( T0 h <statement sequence3>;
4 M7 P# x6 k( H. [. K* e end;, F5 ~# d' w* \! X9 V- @, N
如果分支比较多，用：
x s. r( q' R7 C/ U5 y inspect <expression>
" b/ n0 Y# a( @* C when <constant_list> then$ X" h8 i% g* l* n
<statement sequence1>;
5 F2 M& y n* J, G( C when <constant_list> then
. t* U! V1 R& a* l5 j8 `& {' z' H! D <statement sequence2>;
8 t3 Q. A3 A% i I/ C& J2 ? ...
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<statement sequence3>;4 |: z+ @ @' s7 @. K
end;
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: R0 X3 U& S& j2循环语句
) j8 c0 U( U* l7 S4 X: T" q$ v2 l7 o/ r (1) from <statement sequence1>
7 r8 T$ u4 P c6 n. z @4 o4 W until <condition> loop5 G, y5 I1 t- ^3 C9 b
<statement sequence2>;
$ L0 C* @' a* f% h end;) C+ j2 a$ Z+ D l
(2) while <condition> loop$ V. W3 j, k4 ~8 b! T* K1 F
<statement sequence1>;
" e8 j& F/ L5 f% Q& Q' d end;6 h4 j0 c& m1 w0 i- V
(3) repeat
! d& e. s; U5 Z7 | e9 U: q2 [4 V <statement sequence1>;
# D' F/ C/ E% m4 R4 P until <condition>;
W) o5 d9 G; ^ s" q6 ] (4) for <condition> to <condition> loop/ i* o6 z" R# j8 _% \
<statement sequence1>;
. ^# z/ i6 _, X) | next;1 `8 j8 t6 A) v3 d
3中断语句
- `3 |0 M1 n' j a6 B waituntil <condition> prio <integer expression>;6 m% K! H0 @ q4 A I
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, o0 P, `; K* \% o# g& Z以上为常用的函数！
0 z. u0 {. Q2 P9 `还有很多，如有需要我把资料发到你邮箱里
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