|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句* W; L7 X' ]. X
if <condition> then& }/ V- w& B1 W$ D- w1 @+ H) ?, i
<statement sequence1>;
% V @; f r5 O; L7 \+ o elseif <condition> then$ ^& N- n. M/ W
<statement sequence2>;
/ [1 _$ {4 }6 i! Z- B3 X ? else 6 z6 ~* U. T3 q! O
<statement sequence3>;: z) b2 z2 S; r4 F3 r& r
end;1 a1 W* S7 t O7 ?+ ]& q/ ~) z9 P
如果分支比较多，用：- t; T) O; ^2 e; y
inspect <expression>5 y+ |: A" ^* w
when <constant_list> then0 K; V8 q, R1 K8 x$ M6 d
<statement sequence1>;
1 I9 R8 s9 Q" ]5 m e when <constant_list> then5 k, F( ?3 X7 p s- a2 s
<statement sequence2>;
! ?" s6 P/ e1 H6 e! z2 ?/ m) S3 f: J ...
7 W9 i. X- j; S else4 ?2 U }+ w7 ]4 r m8 z2 T- [/ ^
<statement sequence3>;9 `: m' y; e9 }& y( s2 J8 |
end;
) y Z. D5 M( m% N: E, q8 b+ G
0 j2 n/ d* }! r. u' ]& D+ I2循环语句6 e4 w- f8 h, i9 M& R
(1) from <statement sequence1>
5 n! D" {) T( u+ J3 ?; N3 v, l; S until <condition> loop" N% R4 c5 j' H6 I3 e+ L
<statement sequence2>;
$ T- u9 ]! m# h3 Z8 n/ Q end;
) P- d3 }6 {6 J/ [ (2) while <condition> loop+ s# c8 V; U0 K
<statement sequence1>;3 p- w& d" n! d. x
end;
. A5 l% d( y: r3 B( v& l9 d (3) repeat
4 x4 p) C6 R8 T* b J <statement sequence1>;
; W. b0 f0 ], u$ ]& r) v until <condition>;" E/ h. n# c. J0 D" L o6 K
(4) for <condition> to <condition> loop# r/ ?0 l( s7 C7 Z/ w" \
<statement sequence1>; Q, G, j) j: [
next;
# i/ {* @7 R; ^7 P. g5 F! I6 _3中断语句
1 m: Y. _# d0 a waituntil <condition> prio <integer expression>;! _- v2 F* l' z7 v3 S* k7 I0 T( p
# D* K @8 L# {$ }& @% X
. s- r6 ~: X/ ?' J, L$ I以上为常用的函数！4 l& L$ ~, B% _
还有很多，如有需要我把资料发到你邮箱里
8 g. r/ R' m" p |
4 @6 T" X# \7 W: o1 X8 P w- }! e% p4 S. z8 \
; w) J6 `8 F" E0 r# o
* o3 H2 V( P, B' w( _ a+ @1 A8 m+ b! c+ [! m7 o) h7 |& S
1 ?" }& t4 e5 R" c
: S I! X, S5 n7 T9 G# F q) l. S0 D0 n
/ d4 P* ]0 n0 M+ e I: P0 {
5 p& g Y' ~; x& G" `1 o |
|
[复制链接]
