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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 O0 b# @- b! Z8 j* F
if <condition> then* p' |* b0 F- H3 _' Z8 F/ Q
<statement sequence1>;
, I$ T9 F( W. s( d9 \ elseif <condition> then" P" e: |& ]( c# v
<statement sequence2>;6 h! @: O! [7 e, C! c+ A6 O
else
/ o( u3 u4 e5 [" `0 Y% L; I <statement sequence3>;
@+ ^& X( _$ g: T* n7 E end;+ @( y) F3 }8 i* T
如果分支比较多,用:
, y; t3 s# t' ]# c inspect <expression>
x6 L+ e/ D8 S: x/ ?/ q when <constant_list> then
- v) P# ?6 a/ j9 f- k3 E$ t <statement sequence1>;" r. l s U" [ w' G) P/ z( x
when <constant_list> then
q& K6 {; Y5 \) _0 {* M1 f, \ <statement sequence2>;3 E+ f- w- S$ Z+ X
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else
1 M) H' }9 w) [) K, i4 d9 C6 y <statement sequence3>;% [& Y& W6 p, M7 j) F
end;
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2循环语句$ C0 F: Z `- _+ L$ d
(1) from <statement sequence1>8 Q W. [9 K- w, @
until <condition> loop3 Z- b& C: w5 H% U& T6 {
<statement sequence2>;3 |$ P& O- d- r7 y# g7 U2 c& `. ]
end;
$ H! p( a9 ]2 e/ x. ~ (2) while <condition> loop
/ x, w' j- [0 W n& Y <statement sequence1>;
! o* {5 U; v7 S end;
* i" _8 X0 E4 U" {3 i8 o (3) repeat 3 k" a Q9 h: b/ H' |
<statement sequence1>;
# l& e. E4 I( O5 P5 i5 `& Q: _ until <condition>;
( W- j/ ^8 z$ | (4) for <condition> to <condition> loop
) H" A0 b5 I( V& Q# N <statement sequence1>;
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3中断语句: l0 w' U8 ?! L8 N) V& v$ `
waituntil <condition> prio <integer expression>;+ M5 c: ~+ s @9 |
+ \! y! b8 V4 H8 I* ] n/ D3 w. r. t
: U8 a; ]' e8 @以上为常用的函数!
+ [$ M, z! U! E* b, S还有很多,如有需要我把资料发到你邮箱里
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