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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
4 N+ N2 [3 O' x if <condition> then7 Z9 `4 L7 j4 T
<statement sequence1>;! H8 a8 Z- {1 h
elseif <condition> then3 L5 f/ ]; D' t8 o; |* ~: @
<statement sequence2>;) B: n6 d- w% A' j' v/ a. }
else 3 L2 j M( {$ z
<statement sequence3>;
# C( U$ F7 z- {& r5 V$ i end;
( j8 F. O' C' X如果分支比较多,用:( M3 U6 v( c# W+ R2 B, X# B
inspect <expression>' y* R" ^: @& O% e4 T
when <constant_list> then0 \* V) L; V7 V8 f; U
<statement sequence1>;2 A" E+ C5 W. D0 f- ?, \; f- a
when <constant_list> then
, H/ t, h8 c* E <statement sequence2>;
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<statement sequence3>;
y" c/ {$ }3 J) a6 ], J( Zend;
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9 O3 J4 o& u0 a- s5 q2循环语句
, J9 k( S( r9 @ (1) from <statement sequence1>! O; f c0 F: `" J1 D
until <condition> loop5 e0 ^; ~0 X, g
<statement sequence2>;
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(2) while <condition> loop
( {$ H9 k5 s# Z$ k0 u <statement sequence1>;
0 I4 L: ? d' f% ^; y end;
( ]3 X/ ]4 n! O, Q (3) repeat
( b3 v- [) K) ^ <statement sequence1>;" Z$ W/ P+ ~- x0 | ^% i
until <condition>;
% y7 K! m- E$ i& [: q) K* b (4) for <condition> to <condition> loop
' E# D5 R% U2 ? <statement sequence1>;* b5 B) [2 m- U* W. j: `* q f
next;' \; {% ~ Q. ?$ C0 w
3中断语句9 W. ?2 f% N5 F% m9 r4 s. e7 X
waituntil <condition> prio <integer expression>;' o: h# A _5 J! n* R5 k
$ z3 ?6 E0 i z* r* @& W, _( x: S x7 E. e3 w0 }$ N
以上为常用的函数!& F! A1 ]2 `) K- O' j* }
还有很多,如有需要我把资料发到你邮箱里 ( e+ [ `% N, B- w% `3 B& s
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