|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
, f" i! A* d( \ if <condition> then- t( B. P7 d3 c! D( k& C) I! d }
<statement sequence1>;% K& ]; h) J* e) v, O3 m
elseif <condition> then. Q1 q1 J9 } s9 w" L% K( u$ V
<statement sequence2>;3 h3 L F5 `+ b
else
: s g/ y, Y3 n! y( g' ^ <statement sequence3>;: w5 I2 v& R! c2 p. ?: A4 v- D
end;+ F1 @% c1 L4 F/ N7 k
如果分支比较多，用：
3 y2 g$ ^( z8 V+ P inspect <expression>- S' L2 ?' O& {; M( Y: [" ~
when <constant_list> then' k# O" f4 f' Y1 m+ H
<statement sequence1>;
2 h' i# e: E* s f3 s* l5 @% Y; W when <constant_list> then
; N( x/ Y9 n& r. }, S% q <statement sequence2>;
2 P$ l. D2 K' {" |0 N ...
3 [+ c$ t' k/ t5 |& U else) E. w- \/ D9 ^5 P. g: h3 v/ i
<statement sequence3>;3 Z; y/ [$ p1 I
end;
0 Y5 t1 A" `# T. i- ?. G. d& T* z
9 P6 [3 W; E* e5 p p4 I2循环语句8 k1 \6 j$ e$ W2 x9 P3 J2 N
(1) from <statement sequence1>+ r5 f/ W. D2 k
until <condition> loop
, D* g3 ^3 b! T+ v: G+ F& e <statement sequence2>;
y% d4 _1 f4 w4 Z- ` end;
$ u# s0 o4 x1 G) Z4 x$ S (2) while <condition> loop
* V5 Z7 C* u7 o' U) D5 K <statement sequence1>;3 K3 l) d5 ^- k( z- w+ b: ~
end;
) e& A% h9 w5 s4 }; \9 r5 j (3) repeat " g2 ~/ L R1 x i6 B; @3 E" h5 G
<statement sequence1>;
) z3 v( {5 D H1 R3 I until <condition>;
, a/ C6 S3 x* V! C (4) for <condition> to <condition> loop
2 O3 b: r4 j2 _ <statement sequence1>;
* l) u5 J* p! Q T next;
$ Z( D+ H, M) N" u8 @$ R3中断语句 a9 k* J' H. i. ^! X, D
waituntil <condition> prio <integer expression>;" Q e# b9 Z. V: r; d
, k; S4 | M( s" \0 Y8 A* ]9 _
; s9 I0 a* K, Q4 {, N以上为常用的函数！
i ^: |+ k9 u/ X: k# V6 w还有很多，如有需要我把资料发到你邮箱里
0 y. F3 f0 [) C5 p/ H; _+ ~, b; z( h% b5 o2 o+ \: A( R+ i
& m/ Z4 L6 O: F% ~; o& K
+ _1 {8 Z, z! O- u ) F# u6 g8 Q( N& o1 S( ]
. N7 }+ Y$ F, m" X3 ?; [' }
' I8 `+ _# q A4 x4 O+ E- i% u$ ]( Q: }. T& e
4 ~/ E5 n0 A2 d
6 g* k, O& `5 X! d! X( Q B 8 x' K9 t9 q+ ~0 D' Z4 P
|
|
[复制链接]
