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发表于 2012-11-13 08:48:12
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1判断语句, }0 F3 Q# e8 b/ ?* Z y
if <condition> then
+ |! w* t% x* V9 q/ d: U <statement sequence1>;' \ Z3 }. y$ F' B5 N
elseif <condition> then, N( F, F, c; N! g* p+ W
<statement sequence2>;
# [+ o/ k" M0 ? else ; y1 [" A1 `8 k
<statement sequence3>;
( L+ I$ L" V7 M0 c end;
$ `5 m- ]) I. A$ [; |/ T, e/ s如果分支比较多，用：
' W1 @* m, j, o% K2 H7 h inspect <expression>
: e8 a& [; S5 e6 @/ X7 g# }1 o when <constant_list> then
. z# y2 \1 |+ G/ z1 S! D' n7 D8 x <statement sequence1>;
/ }# N! z% \( r3 I( `" ?8 o7 ` when <constant_list> then
6 Q; E: ?$ C0 [" H9 R6 L% {$ m <statement sequence2>;
0 i1 e+ ]3 A" j: [ ..., F& V" |3 m# m0 h, `& u0 {
else
4 Q) n- A3 k* k! k: X <statement sequence3>; F5 Z- Y$ o2 i6 S) {6 G5 L4 e
end;
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2循环语句
+ m7 z1 T( i' X7 m ? (1) from <statement sequence1>
6 R9 U6 F S- I# D* H* ?8 B, C& T until <condition> loop. _3 R* X& n" u B: B
<statement sequence2>;
4 e: `. \. {+ ~& P: Q7 C end;% x( y; V( Q3 Q
(2) while <condition> loop( k% z; V; z+ d6 J" l$ ]
<statement sequence1>;' x. Z& ~1 l# ?: @# W3 @! J
end;
7 u6 ]: J: V: G" O7 D% H; J (3) repeat $ t$ u c& N' M/ W' g5 {% S5 e& L0 C
<statement sequence1>;/ m2 A2 Q$ @. a) g8 T: \2 ?
until <condition>;
0 g" Q! }8 |% ?4 e3 d& m (4) for <condition> to <condition> loop
: H' f3 o0 @3 e <statement sequence1>;
/ ]+ Y% J9 J6 r, b" n next;
# J* D( T% `& i V* q+ i4 |3中断语句
; ?& A" U9 S4 i) {8 J waituntil <condition> prio <integer expression>;
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2 [ g+ O; X- H' G3 v1 f) N以上为常用的函数！
# @ n, Z, [- o* y8 x3 k还有很多，如有需要我把资料发到你邮箱里 & \8 j: S% m4 g0 A0 j
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