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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( t; T; j X% a
if <condition> then- i9 M) f5 S2 [$ c; ?/ L8 f( J6 N
<statement sequence1>;, ^& O+ j& s* Q" _6 }' W/ F. W
elseif <condition> then
3 A' l: D% N' p! k- T4 g8 ? ^ <statement sequence2>;: g' ~5 ^6 r* J. o
else
; T6 v' c/ _2 n0 W& Q8 N, x% s <statement sequence3>;
?' P+ i' c: k1 ^1 o4 V$ Q2 l end;3 i- N1 _7 N' C( E: V
如果分支比较多,用:9 C+ P. z$ W! j! K
inspect <expression>/ E' N3 O2 u( t0 \, u) ]8 ~- V
when <constant_list> then* P" a/ Y# A* W$ E% K* M
<statement sequence1>;5 v1 W! D$ p# g
when <constant_list> then
3 c! o3 G; o5 j <statement sequence2>;! u, i3 Y# e- B# M3 C7 E% r" B
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else
" b# P4 A2 O! j' e F$ D <statement sequence3>;
4 J; ^+ l& ] u+ I2 p" L2 d& ?$ nend;8 M4 P# {+ J/ {1 l; M" L; d. V1 [
$ D8 E# q o' Z2 r* x
2循环语句
& f7 q1 ^5 f5 j2 ^ (1) from <statement sequence1>
& c0 F: n( {0 S8 g$ o2 T0 A3 s until <condition> loop
8 F* F. ~, a* L$ f4 C0 A <statement sequence2>;* d6 |6 J0 N/ U C K
end;
9 b+ g# o# `: [, H {0 q9 ^ (2) while <condition> loop
) U L- z5 m% d1 c <statement sequence1>;- s" V3 z: r: U: a3 P1 E
end;
7 v+ C/ M. e: q5 D* D, p (3) repeat 1 ~$ |! n; f( ^3 X& S
<statement sequence1>;
" c# z* _8 \5 {2 _# s1 F until <condition>;2 ?9 R8 F' l' V3 @6 Q; ?
(4) for <condition> to <condition> loop
# d- w/ I( m! K0 d4 h: ^1 S <statement sequence1>;
, u1 F- B4 M# j4 {# z! z next;% f* \" M1 K5 H8 P J( C# B. p
3中断语句
/ R+ y1 q+ c6 Y. r6 T0 V waituntil <condition> prio <integer expression>;7 T( L4 C8 m p
9 A- |3 u8 r2 _2 g7 P* O( i
7 f9 `7 c% n7 x2 z以上为常用的函数!; u: e- A( g/ T/ G
还有很多,如有需要我把资料发到你邮箱里
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