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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
' }$ n* e4 o0 _5 w/ S if <condition> then' Q& E$ q) e" }4 ~) C1 K
<statement sequence1>;
0 [; f& @3 q r: x4 y elseif <condition> then
# X' ?: F8 q+ s* N# y4 n: ^! q <statement sequence2>;; V. c# [. O! m5 @& J, J' z, v
else
0 h n5 T! {* V' z <statement sequence3>;. S7 ^# y4 Q- v$ c+ p" \
end;
5 u" s# E. ]0 U1 Z9 Y# P% U如果分支比较多,用:
" W* d7 I; B6 m! q' A inspect <expression>% Q# s4 ~6 m. J; |4 i
when <constant_list> then! K8 `* M. g6 C' S. d( x A3 C8 Q
<statement sequence1>;- F4 |5 V# k$ j" Y- w& B5 j
when <constant_list> then
1 L* g6 V _1 H+ d <statement sequence2>; Z3 }8 ]4 \, H4 K2 V4 Z1 n
...
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<statement sequence3>;
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! V9 W1 N1 x! ` o* f2循环语句
9 c: N2 u0 d `) _ (1) from <statement sequence1>
; m4 ^0 I! ~& F4 |3 w until <condition> loop1 T3 N* z: k; y: ]
<statement sequence2>;' S% X) l: L( l" m9 E* {; @
end;. Q" P, }+ w# e# U' W+ J7 f
(2) while <condition> loop( [, u. w2 ]% u
<statement sequence1>;
U) q4 m0 j! W' U; B end;: A, u, U s* ` y, V
(3) repeat / b- D v5 B/ m. a- ]
<statement sequence1>;% r& n/ M1 W* c' ~3 D7 u* ~
until <condition>;
% m2 u; s4 B4 p1 S% b: D (4) for <condition> to <condition> loop. ]' ?* t& w( w) D% Y
<statement sequence1>;
& Y3 Y& A; d8 v5 S! M2 L next;$ p0 A$ }: t1 h$ J! P% m2 y& h
3中断语句
. O, L4 ?4 R w5 E% k# @" O& V waituntil <condition> prio <integer expression>;
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以上为常用的函数!( Q" |% o! T( H/ T |% K- v4 g! K
还有很多,如有需要我把资料发到你邮箱里
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