|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
) d0 q! r# d! X. X1 p- ] if <condition> then) H: }$ M+ Z1 [" z
<statement sequence1>;0 Y( Q! i K, P1 W+ e7 Z/ X
elseif <condition> then! G8 [- H/ {, a% g* a# i! C. B1 i3 ^
<statement sequence2>;" X' G/ P6 }- g
else 3 |7 s& x, [6 v$ ^9 i7 c
<statement sequence3>;7 B: t# p0 ~3 n4 J9 L
end;1 d5 ^9 A) `1 W" h
如果分支比较多，用：
! {; g$ N; Y+ l* S. N* F2 p inspect <expression>6 A F, M8 y% V. _0 z; \ J! Y7 E2 [! f
when <constant_list> then% {0 w# s6 C; |! |( ?
<statement sequence1>;
4 M: O, D& |% E* ~# g& U when <constant_list> then
8 ^4 f' ^1 x# U% ~# o1 u <statement sequence2>;! D& X4 E/ u) J6 k: }2 o( l! Z
...
9 w) n& W- c) S1 K else! G% @. c) ]) C8 z2 O$ b+ Q2 p
<statement sequence3>;2 k! ]6 ]" P' N1 }! K. H
end;4 }" H: K6 k$ e8 d/ B
$ a8 v) H3 a4 ~7 I( w( [8 I2循环语句% K1 r- [) S/ m, v
(1) from <statement sequence1>
$ ~ x" G" s3 [7 i until <condition> loop
+ G0 J) ^; C% H# p <statement sequence2>;. t$ l0 m$ S$ p$ ^3 ^- Q6 W& n
end;' J7 S! P! c" |
(2) while <condition> loop9 s U2 |/ u! Y& P- T
<statement sequence1>;
# M$ K7 l6 N& K; o& t) z% L( k& I end;
( m8 ?$ S3 w. ~1 N0 B" v& v5 E& U (3) repeat
, X. {. s5 M* F1 n9 I4 t <statement sequence1>;
# |4 L) D4 Y8 J9 I1 L# A: h( T until <condition>;
9 `) x* j& p1 Z& @0 l0 A (4) for <condition> to <condition> loop" n1 a+ w4 z+ X* P: A) m
<statement sequence1>;+ T) f# S& ~- S3 r+ m) X0 o
next;
# f. B T6 d! t3中断语句
, A6 b* H; L) O2 u waituntil <condition> prio <integer expression>; g3 T$ D% K; p. I, v
& I) d% l0 }5 S; G4 V* A, {( S
4 z* g0 b$ |) E! B3 ~+ S8 \2 M以上为常用的函数！1 V0 A H( v2 ~/ [/ b4 N
还有很多，如有需要我把资料发到你邮箱里 " k" m5 I) X: s C9 r* v
! ]& @# n0 d5 e. f1 a! _3 |
5 C) O/ D+ T& I' c6 ~9 @- Y0 E/ P: I
8 [; n9 Z1 t8 J0 {* ^# e
) J# A$ ]) g/ o1 Z3 c) h6 o" ?7 ~( q, \& }2 g/ I
, x1 `: a2 p. G, o2 a6 K
) [3 F g' J D! G6 p) I) \, n, V$ [* B
' _! }5 P& c7 S4 n 6 _% H. E5 y( |9 [
|
|
[复制链接]
