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发表于 2012-11-13 08:48:12
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1判断语句
) M& X% |8 j f m/ E6 L2 V if <condition> then" c% i" D" H% o9 E3 i+ \
<statement sequence1>;. _. n" h- Y% s' Y, s/ L
elseif <condition> then8 m3 h9 L4 `$ t/ B
<statement sequence2>;% i1 u5 V( a3 C) |0 C
else
6 Y1 ^7 H6 L% H! L. O( a. M. n) s, W <statement sequence3>;6 e, O. F! H! s6 V! \
end;. n1 ?: c' ^ J, Z% C2 o
如果分支比较多，用：
# S' E* Y5 U( {2 n `3 |! g/ b6 t inspect <expression>& U, W. w( k6 o0 h: B# O
when <constant_list> then" K9 K1 O: o) R9 K, x5 k
<statement sequence1>;. j N" d0 k) `6 p
when <constant_list> then
& x/ W+ y$ T+ d; {' p6 z. {4 j <statement sequence2>;: b6 {! j# d* g! @' Q, C) s4 {
...
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<statement sequence3>;
$ Q. t6 }; `/ |end;6 h" p5 f! D9 L7 e) O
" B& Q4 h' }3 H; k2 o2循环语句
7 `& }) x( {- ?) E3 ] (1) from <statement sequence1> Y4 h) R9 a' H+ K1 L, ^' X
until <condition> loop
7 h9 \5 B/ W9 P+ ]5 O: S$ w3 j <statement sequence2>;
& Q! {. l( U5 i3 l8 F end;# q o( z3 p; a1 E- d$ x9 @
(2) while <condition> loop6 }+ E4 g9 f, U4 y
<statement sequence1>;
0 d& H8 a* |. C' U1 S6 o end;
, _& R0 K& y& z, M" V% r e (3) repeat 0 g, D& Q, ]- b! z1 B6 r# n
<statement sequence1>;5 Q7 Z9 r8 c4 j/ K! c
until <condition>;
4 {! _2 {* ~; B0 L" |* M (4) for <condition> to <condition> loop
" i4 q/ Z' T4 H+ `4 j <statement sequence1>;
; `! O3 z6 u: \, n9 E* l2 A$ q9 I next;5 G* b" R/ c0 \, d1 @' L# X
3中断语句
- |' ]; ^/ d0 \" f6 `* E# } Y waituntil <condition> prio <integer expression>;8 a: p4 S8 x7 O% D: k
. }3 d9 e n# E4 c1 R
! g6 ?& {2 Z8 @. }以上为常用的函数！
. O M# y! h! T6 B" r0 w6 i还有很多，如有需要我把资料发到你邮箱里 y; z9 Z8 r: y* k O3 r4 g
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