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发表于 2012-11-13 08:48:12
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1判断语句- ~, z8 i' V% c4 P3 c7 C
if <condition> then- G( v* Q1 C; ^+ j2 y
<statement sequence1>;; y5 U) p# b1 I# \6 [& o
elseif <condition> then0 g/ H& Q) {1 S+ \- Q
<statement sequence2>;
7 I4 u' r6 w# l" h, _. X else
) E0 N4 _' Q1 |$ S% H4 l <statement sequence3>;0 v t9 z# F: p* i) ]
end;6 l2 L& V5 q# O+ O# |2 }- q( I; p
如果分支比较多，用：4 X- T+ X' D( P: c
inspect <expression>
! l( Y" T/ U4 Y% y$ M! u when <constant_list> then
' X- h; J- F2 @0 o+ _ <statement sequence1>;
. ~, \$ _7 a8 L when <constant_list> then
0 s m. l8 y/ R$ b <statement sequence2>;
* k0 H( h9 i6 Q' w& x h* e; W ...( |$ L" W2 ^8 M0 J; m) B) V" e
else
) J% o9 L9 v9 @8 F <statement sequence3>;' {. n- U2 I) T( q: y& g6 v
end;, j; H6 @( o7 L' d: B: u* H) S+ K
z( h( p) O* r( r/ p; s4 L2循环语句( c$ Z/ o, ]0 h- s6 S
(1) from <statement sequence1>
/ g& X$ ]) k& f9 n* |; L until <condition> loop
' R" H/ z4 T1 Y6 O3 w <statement sequence2>;
# F- ~" s2 d3 Z, S7 q+ k" m' b end;
: h' s8 a" b3 z8 u7 V% s (2) while <condition> loop/ J3 g6 U9 \4 R- J
<statement sequence1>;
7 J) W! | _; E2 p0 K) i) p4 m end;
7 Z+ B0 L$ q4 I- m- m (3) repeat . j: t9 g1 O5 v9 ~$ F2 b; h
<statement sequence1>;
: N8 B1 v/ A" ]7 W; j until <condition>;
! ]" E) l# J& {8 u( L (4) for <condition> to <condition> loop1 i* @" i7 U$ y3 ^# f. h3 q
<statement sequence1>;3 G( p$ C' j$ K' f
next;
- v' P+ h. G' s. j4 Y. R3中断语句
3 W8 U; w2 U9 f/ x0 i+ L% I waituntil <condition> prio <integer expression>;) y0 f- a, _. B! p0 Y, S7 \( I# m4 I
9 ^. _ y# H: V+ t) f3 O8 V6 U
% e, e( B7 N7 s/ w# ^以上为常用的函数！
( u# g4 Q2 _1 n" H还有很多，如有需要我把资料发到你邮箱里 : e$ ~6 d% U7 n
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