|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句$ o( P% q4 F. M$ l, e
if <condition> then
) _) x# }0 P+ S! t+ ^ <statement sequence1>;8 i" D) \, h& J: ~+ U; C( C
elseif <condition> then/ H% J* Z; H* o& i& V' W) T
<statement sequence2>;
6 S0 |4 ]- v, e1 I else s ~# C8 N4 L8 \3 _# q. o4 D" r
<statement sequence3>;
# r6 M; k2 N# \4 |, i! t end;
' V! I) ]- G0 M9 N1 j! d8 E如果分支比较多，用： F6 R! O0 J& _8 B$ U$ \3 f
inspect <expression>& t' K6 ~$ A- ~! O- l
when <constant_list> then
2 t1 ]! n I2 ?3 P <statement sequence1>;( h o6 I# D- z- y& P- L
when <constant_list> then
1 R& S8 ]2 O: \' u1 L% D# Y5 h3 C <statement sequence2>;0 g+ C: ?3 L- d3 Q" G6 w
...
2 B9 k. `4 F. `% ^. ~* `% v, F else
5 e; z* R3 b8 G' w$ Q; t$ L! i; I' n <statement sequence3>;7 h% n3 t1 u2 X8 o' p7 u
end;/ [0 ~0 i) C4 t Y2 z
* `1 ]$ {% m7 b5 R V
2循环语句
& p3 Y- y1 s% U1 F0 |! Y (1) from <statement sequence1> o, v# a2 a+ i
until <condition> loop
: X1 a r( O3 T% d- n1 H% ? <statement sequence2>;: F1 o1 P% n- U6 \6 `* t9 z3 [, |
end;
: k1 r, N8 v& L( m/ T (2) while <condition> loop$ Q5 }. U9 u% S; ?* }* B
<statement sequence1>;
/ ]4 s3 _" w- I# i3 w end;
1 I" c/ A6 S! a6 E2 M; p, e1 r (3) repeat 7 ?0 ` [* z5 U9 s$ L: l
<statement sequence1>;! S' E- z3 }8 D) V
until <condition>;
2 m1 m! H4 ^0 {, p" @: p (4) for <condition> to <condition> loop/ {3 S' X" _$ U* E: y2 C, S9 M% A2 c" p
<statement sequence1>;8 e3 c* B; {4 ~" [( v9 v8 _
next;
- {5 \# |) f, k' I/ d3中断语句5 S( i/ T- _2 ]; S+ t1 _ V& I
waituntil <condition> prio <integer expression>;& Y& `, S% l Z7 V+ W6 X
: e- g7 Y# d G) b7 b
, N1 }8 h4 V( Q d3 p0 v) G' B& p: o
以上为常用的函数！/ _) K, j' h1 c) Y- o s# r
还有很多，如有需要我把资料发到你邮箱里 * b. X7 g. K S" n3 Z' v# x& ~
" d* o$ a7 f9 j8 s* `
" N" l8 N3 m$ M3 Z2 j, b- B$ H; w, q- M( T; k/ V+ f( Q; V, y
7 b% W/ k( b" i# L7 Z# R5 D6 Q
* T; ^- l J8 G( H1 a4 e. X1 B, A- R' `
2 Y( ^- I' g% S6 U* }
. [+ D$ x$ f7 o* j& p5 \: z' w
0 G' j5 j+ H5 v' n2 }6 B" F" `
. H" f, ~: I9 n. Q' U# u0 @" ~ |
|
[复制链接]
