|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
# A. C0 r' S5 C1 V if <condition> then
0 p' ]2 S# I( ^ <statement sequence1>;, \" i& k2 m4 V6 O+ w) }' [) s
elseif <condition> then
! Z \" M# P- N: K <statement sequence2>;
. a, l; a4 s7 K/ \ else
/ N; w9 Q6 \9 e; S# o <statement sequence3>;% c$ I$ @3 s% W: p9 U! B; u9 |
end;& h6 i4 g' u {* E
如果分支比较多，用：
) |4 h3 L( ` j% f- [" X inspect <expression> n# Y/ \6 p/ j/ f# T$ ^
when <constant_list> then. s) X3 L% `. g0 v! i
<statement sequence1>;
: G7 }! L+ g9 @5 T when <constant_list> then
3 q# z2 D- t1 u! K, O <statement sequence2>;/ K8 r1 c9 S7 o
...9 M2 X% v$ K. \! C, n( X2 A' G
else4 W; [8 p! O- c3 ^1 {/ ^. R( c
<statement sequence3>;
+ L" E' c. k4 t, cend;. i; ]6 N. y! J& L+ n
# C# W% ]1 z5 P) j/ D8 {
2循环语句
6 N6 I' W! l# W (1) from <statement sequence1>0 q$ s* @ }$ V- n
until <condition> loop8 U: E- \' D7 p: a8 @& I
<statement sequence2>;7 P2 c- V' n4 r$ q
end;
p, B+ R6 d- n$ c' Y u (2) while <condition> loop
( D2 _$ _" L* }" t1 T <statement sequence1>;4 V# f+ d3 k( l6 F2 U5 l
end;/ ~( T+ O+ n0 o( a# y
(3) repeat
( F8 l4 u- m" S" H/ W5 Y <statement sequence1>;
2 l* ?2 H: z b. S3 c5 u% S9 K! @ until <condition>;
: k6 u' {* `8 g* E8 a8 \* F (4) for <condition> to <condition> loop
+ _3 }& J' G& u4 x <statement sequence1>; |9 S8 @- Z# G1 @) H* b3 h
next;
4 O5 j( ~# R. q5 U6 d6 p( b3中断语句! T/ k4 R4 S; M5 Y4 e+ l2 G9 C
waituntil <condition> prio <integer expression>;& l& s {# Q" A1 V, s# k
! C$ P! | |. g% I) J
. ^. q6 S; \* ~; A0 i e以上为常用的函数！
3 f$ I _3 y7 S1 j" T还有很多，如有需要我把资料发到你邮箱里 1 e1 j/ K; Q. k# u# o! C! `
/ z9 {. P- J6 Q2 t8 g. d* ]
* l1 R, t& B2 m/ u. W) n2 j5 J
; R' L. ~6 `0 G : f9 C9 @: D" `* h, [: D
) f6 g+ a' u' \
5 Z( u, r, f5 E! H% z/ @3 N" z5 g
! c+ j, J& ]) ]7 t% s
+ K" T. p4 I" F2 r
% |8 l) U1 ^5 k& J6 N) l: w+ V) ] ' ^9 R9 p' j/ g; ]- Y
|
|
[复制链接]
