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发表于 2012-11-13 08:48:12
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1判断语句1 s; s& ~5 L; s" E+ [2 C7 y6 L
if <condition> then& b+ J, k; E; L# R) R+ C
<statement sequence1>;1 N3 d% E+ ^0 _& ?( W
elseif <condition> then
- I. Z/ m- z5 Z# @$ ~8 J; p4 C! S <statement sequence2>;* s+ o7 S! Y% }! }$ L
else
# i; v% y/ ~, g0 a2 L. q <statement sequence3>;
. D% `( h+ [: \" x" _ h end;
$ P, k2 b2 k# E* `0 c. f+ D如果分支比较多，用：% {6 b/ p+ O0 h7 M$ R& c
inspect <expression>
' |7 o/ S, `0 k. e7 Q5 O when <constant_list> then5 ]% `: w" L# J5 ]
<statement sequence1>;9 }8 C0 z9 n9 E: V1 |/ R
when <constant_list> then
W v3 B0 C; X <statement sequence2>;5 v! I8 j! a+ i! B6 }
...8 `( J# j- W- Z. I4 R% B
else
, W' p5 Q! n* P9 z6 v2 x <statement sequence3>;
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& U! d9 |- M5 s+ r9 \2循环语句
5 u) ^) K9 A3 r# ~% ?) H* B- Z e( k (1) from <statement sequence1>
! [, i6 v" A+ P) \6 g until <condition> loop
0 A) D! n/ w/ L4 h& [8 w <statement sequence2>;- }8 K( q, X6 S' |+ ^0 y; m }& r
end;! L" o7 m3 B$ t# A- e& Z M
(2) while <condition> loop T; ~( `2 K+ l: s: j( o* V
<statement sequence1>;
2 v. m( Z4 i" a end;- Y- e8 D, Z7 y5 @- W8 g1 d% Z
(3) repeat
4 q# v5 ~; s2 D% Y; t8 P- F. F <statement sequence1>;
* f0 ^4 u+ `+ x+ i5 `) s5 r* r until <condition>;
; d+ B4 D9 O- D (4) for <condition> to <condition> loop% U( w+ m$ g% n3 N- \4 A1 V6 g" k2 F
<statement sequence1>;( @) i- w' a/ k l* I
next;
0 O% z$ Y4 F: C+ r: S9 |+ ~ I3 |2 Z. t3中断语句; `/ h6 I0 {% R7 R9 a
waituntil <condition> prio <integer expression>;
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! z# u( F7 K! N2 b# ?! h以上为常用的函数！9 O* }4 y% \1 n8 d$ g; Z* a
还有很多，如有需要我把资料发到你邮箱里 + C! f6 n& ]: ]& R
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