|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
% x. ]( j6 m2 _, C if <condition> then: O" b5 c1 e' ?% n4 d
<statement sequence1>;
. x1 L9 P" c( z elseif <condition> then4 Y6 \3 ]: F# t0 O8 Q
<statement sequence2>;- q' N$ b! ~0 z/ z
else
; n2 C( a: _3 B0 K8 u <statement sequence3>;5 J2 X) Y) e, `. c/ v+ m
end;
$ ^( [) f+ T, U8 }& v6 I如果分支比较多,用:
; ?6 Y y7 }$ f+ j: |+ F inspect <expression>+ X1 Q' G2 D) s: Q) ^' j
when <constant_list> then1 t$ F$ A/ U; _' T, j5 [+ M" b
<statement sequence1>;
" f/ Q4 b7 n' K1 ` when <constant_list> then# R1 g9 V6 u2 e! T8 T: @% M+ c4 Z4 \
<statement sequence2>;
: F1 Z$ w- L; {; v ...6 N6 r/ X! i& Q8 r1 z
else- B4 g+ a5 ], F! S
<statement sequence3>;
4 J. ^; [; ~( D7 P5 O7 A9 Z) pend;, Z/ [$ r1 J5 z/ P8 l0 {/ m& ?& X
" h& a1 f4 b4 }& l2 u& }2循环语句7 r% Z; W! i% l1 S9 i
(1) from <statement sequence1># n2 a9 V. |0 v2 N4 s+ p
until <condition> loop
1 b0 o8 X r" w) C8 i <statement sequence2>;
% q0 o: C# `0 o0 z+ t g1 _/ |( d end;
# A/ k2 [( m* G+ C/ ?; F (2) while <condition> loop) D" m5 |3 D5 F, Q7 }
<statement sequence1>; |# b$ ~0 \$ m; [2 t
end;& q( p J; E$ v% W- l* r
(3) repeat
- g& h5 H# i/ k' S0 c# j <statement sequence1>;
( i1 L7 g9 t) [; l+ ]0 V9 ~$ y until <condition>;0 u4 d" t8 P, y6 c+ p9 F+ B
(4) for <condition> to <condition> loop: b# H5 Q' m6 V o8 W
<statement sequence1>;
f5 [0 X2 R/ ] next;2 t! b9 j& N& N4 y1 y5 e$ F
3中断语句
' N- f7 {4 w2 ? L7 w; f$ X waituntil <condition> prio <integer expression>;
6 P" ` M$ |% C5 ^& x. r
/ ]. M3 P) P" u' h
& K& N* X ^, p8 ?9 _以上为常用的函数!
! U/ }' h8 g' ^$ P' q( V还有很多,如有需要我把资料发到你邮箱里 , }) d3 |, Z; l: z+ z/ ]
7 k0 M# R( H) }
4 [( Z; T$ N8 j$ b9 j9 J$ U- L0 l, t4 H( R7 T# g* ]
& K" \* K/ O+ m
: a s$ ~, M4 [0 i e' T7 k. k: m% \" s9 b" @6 W' D
9 O. {1 \& K) p A$ k
7 ~4 D# n$ p+ S. E, l
1 |8 t0 j+ a9 F, M0 ]% F
7 F4 D" U3 s! `6 W% s1 {( V |
|