|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句3 k. }# O$ s( a+ v7 Y
if <condition> then1 @! S8 a( w9 R1 N" }
<statement sequence1>;2 T8 u4 ^% h. G# a
elseif <condition> then% | H/ k" t1 N5 f6 C; A7 b
<statement sequence2>;% R% B7 c6 L' `) ^* d1 x3 B9 Y- L1 C4 Z
else 5 @, D; H7 F9 _( l' u1 f
<statement sequence3>;1 w* [. M9 ]7 A5 X4 Y3 X
end;- ~& M& T3 O4 ^ B
如果分支比较多，用：
) e* J) g9 s9 ^9 z inspect <expression>4 Q, A: b! F0 c9 U+ X, f; `
when <constant_list> then& Y7 f+ _2 @" l; y( c5 M$ |
<statement sequence1>;6 q. Z9 y1 E) m$ x* u
when <constant_list> then
; Z; F. }. C( w/ n( m) v' ~ <statement sequence2>;; H5 q t. B2 U4 z
...
7 L1 `% D7 n# u* f% ], E6 y8 r else
) y* a! v9 I) o' c& |9 F <statement sequence3>;0 x1 s, i* _, ^7 r; `2 z/ d# N5 F
end;6 E- r3 m5 w" ^0 u' g
8 @% M, v( X8 v2循环语句9 {2 p/ h( [ C; {8 A* C1 t1 V1 o5 P
(1) from <statement sequence1>: S0 t2 G \( ?& t: [2 Q, n
until <condition> loop# g7 b- `1 v8 Y# q7 B4 o/ i. F
<statement sequence2>;1 o4 L2 `# ~' o/ h( G4 K* B
end;- @, U; w# R% P% n) @- V9 G
(2) while <condition> loop
9 n, J! r8 {( _$ \* K <statement sequence1>;4 Y: W/ Y1 D. v9 N7 k: d4 h
end;9 k0 M7 _$ F( N, z. D
(3) repeat , ?% f. U" n% q: d+ U
<statement sequence1>;
# a! l0 P; F% K) t0 G until <condition>;. L8 | w+ R4 I% P
(4) for <condition> to <condition> loop
2 w2 w0 v( ~; N/ H <statement sequence1>;
7 ^0 l3 r$ J3 d next;
. R# i5 u0 B( t: `3中断语句
+ `- Y$ r, k ?: R waituntil <condition> prio <integer expression>;3 |' H8 |7 S7 ?
6 [) e" l3 y9 ~" g6 u) }/ k9 N
6 I0 Q5 Q7 {- p- J: m以上为常用的函数！
* k- X# z5 S X: P1 l7 P8 s3 S7 R还有很多，如有需要我把资料发到你邮箱里
8 t; g# N5 e; o$ K3 _. R
5 ?0 R" i% x- S1 s' Q# h0 d
. ^3 ~: L$ N( {, G
' j" T' _9 _( b8 i2 z! P. t ) _' ]7 S. L. R! C7 f' j
) ]6 ?- Z3 u; j* x% H% Z0 }
, X8 b; y6 {$ c; w5 {; w) N( F6 @- F9 G% B ?/ X7 h
, `) F2 @7 C) g e- P
! J; z6 X1 ?* b8 N, S% }8 v9 }" v
! V* s8 _- \. r" w- c6 G6 D8 N2 u
|
|
[复制链接]
