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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
1 G( I) u, o# \ w+ m if <condition> then* P2 r. D1 b: t" E: F& Q, t
<statement sequence1>;' r9 i: x; f# I: m* A( e
elseif <condition> then
- L7 u$ W$ Y( `+ T$ @; s: x <statement sequence2>;
4 w1 S" R" M6 t- z: R5 t else ; e, K( q8 B% ]$ t/ C% s, q, L9 b
<statement sequence3>;1 @7 d: J! Z* a! A
end;) @. p3 s1 w+ l) O! ?
如果分支比较多,用:1 T& c5 _& B7 p- h
inspect <expression>2 L/ g. g/ F* o8 S
when <constant_list> then
6 q6 E" T/ F( e( W4 Z <statement sequence1>;
5 l) h' e5 B! u* {* R9 i when <constant_list> then
6 a; D' D; r1 c; {- S <statement sequence2>;* v6 P; G. N9 ~* L
...; a' D. U$ z4 N% @# N
else
2 W( q% z: I3 B) y <statement sequence3>;+ q& Z/ R7 ]- ?* U6 B7 _
end;) E$ _! y u0 r7 Z5 ], K1 l
; d. ?8 T" o* ]) S6 K2循环语句
9 b( Z- Z/ p! \. a p$ d (1) from <statement sequence1>) I8 t3 G: g+ q' J. k3 y0 \
until <condition> loop2 g- g( F1 j P
<statement sequence2>;
! h" n3 `. f8 ~ end;
- O' E. J8 f" f% S) E% M5 O (2) while <condition> loop
( t- a* R% Y1 b) V# T <statement sequence1>;4 x( t2 ?( |/ w4 @$ _& f7 L. {
end;
3 K; X/ K. V: x' m: y0 O% x( S (3) repeat 7 B* _9 B2 W1 J% \6 v5 Y
<statement sequence1>;
( f' d& u# Q% S until <condition>;8 {4 b* y, }" @+ f
(4) for <condition> to <condition> loop
1 K/ t7 W8 w1 P2 F <statement sequence1>;
5 l9 ^% W, x3 E4 z5 j U next;' S( l$ u8 h/ J" @$ J: u! t
3中断语句% S" H+ {9 q6 P- o/ r9 t
waituntil <condition> prio <integer expression>;- s7 d$ X$ ]- M: H5 e' H; I) c
* z' e) `& d0 t; @" m% w8 L
- t" E1 z: k/ T5 c7 ~% D以上为常用的函数!- x# d# G. N% F" w, ?
还有很多,如有需要我把资料发到你邮箱里 ) | v7 ~0 `# }; j% e
E# s% \" Q: W# q! X
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2 ]. w- y: q A. _/ P
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