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发表于 2012-11-13 08:48:12
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1判断语句
! ?) s0 R5 d9 y$ l) ^% U" p if <condition> then# H+ x W) f/ L1 @& s; k0 s$ ?9 ^
<statement sequence1>;
8 }# s: n0 b. {4 h( u( N! { elseif <condition> then( J9 I' m$ T- M
<statement sequence2>;
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<statement sequence3>;( T, l4 o: B. B
end;
0 ^5 W( I" ^" h6 C- f% c* x如果分支比较多，用：: ~/ ?6 ~+ k! c, |; C h# k
inspect <expression>
# }: @# M/ u9 B8 R when <constant_list> then) G+ R h; v. N% |% l
<statement sequence1>;0 N8 B8 G( e0 c' [* n, F* `' Y
when <constant_list> then, m" g- f, a' A$ i1 d8 q
<statement sequence2>;( w K: I3 H2 I5 N* g
...5 g9 g9 Q: b5 u1 }3 {3 ~8 @1 M& [
else4 N# l! O' x* b/ ]
<statement sequence3>;+ G3 G4 E! ^( k$ g3 a6 j! t+ \
end;0 T0 t: y" A+ v
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2循环语句; H, J3 Y) T4 L0 V2 E X
(1) from <statement sequence1>4 f( n4 @- ^1 l% v# V' I0 y3 p
until <condition> loop
( q! s8 ~0 K0 h# H9 D# b# C" \1 Q <statement sequence2>;
4 V8 k! W# A$ ^9 B" E8 e' T end;9 N, V1 D: x0 @' [9 S8 t- @
(2) while <condition> loop* D% M$ t- z( X8 e6 [4 |
<statement sequence1>;
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(3) repeat
) c) X) M5 l, G( Q <statement sequence1>;
% u- {! ~/ B' r4 T& C4 Z1 E7 E until <condition>;
, b, b1 r/ T6 r0 e/ ] (4) for <condition> to <condition> loop
) T3 H2 H: u& w4 |* W" a) l/ N <statement sequence1>;
' C7 R7 ? c( t8 M( c next;
2 N) C0 ^; E& ]* T5 u8 {3中断语句! X6 T/ L& a3 [! y& X& S/ p3 i. X& S
waituntil <condition> prio <integer expression>;
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5 J( h+ ~6 e# i G以上为常用的函数！; R7 a. d* W+ ~0 k+ r0 u& k# w% @
还有很多，如有需要我把资料发到你邮箱里 ! v9 Z/ o5 l' r9 |2 L
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