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发表于 2012-11-13 08:48:12
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1判断语句1 ?) T/ H8 F. W
if <condition> then S( v& [5 h/ d" ~
<statement sequence1>;5 ?; } v2 z4 G: V6 V% y7 U" N
elseif <condition> then! F& P9 s( v8 [+ P1 H ~# L- D/ \" G2 i
<statement sequence2>;( s# T+ C7 t' J' V) C2 }
else & B8 K( y3 x8 C' p* k# j/ G
<statement sequence3>;
. j2 a8 A. K: l: T end;8 l& f3 s3 K- Z, p) B2 f
如果分支比较多，用：
/ p7 v" s t: V" { inspect <expression>& {4 N' L; l i* s, u/ S
when <constant_list> then0 P# R n4 _1 L$ o
<statement sequence1>;
( Z* K! r/ G1 ]2 i- @ when <constant_list> then% A* B# G) Y4 g- R* h9 B
<statement sequence2>;2 [8 p8 B( w& F6 G
...
# ^; a4 e& p" G g else
9 j% \6 g m9 K" v! S <statement sequence3>;" R1 ^) }2 J% V: w1 L. O, R
end;3 M6 s' h5 E; o0 r
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2循环语句3 K9 B. E5 q) z- z9 U& k
(1) from <statement sequence1>
" n+ f! K6 b1 m3 T: R/ O' k until <condition> loop- w- i; Y5 I3 B7 Z. D
<statement sequence2>;7 O8 P" e, b% B7 e% E
end; @. ^* C# s6 W# H7 W# I1 B( Z, ?( |/ f
(2) while <condition> loop6 R6 s, @" j" D2 g) G: k( g
<statement sequence1>;
/ y n! ^& v/ X3 G: Q3 z; P& s end;
# a; V% d( N% t+ b- U4 X3 A. b) E (3) repeat
! ]* h: F) i2 [3 ?$ m1 b6 A+ S <statement sequence1>;
$ U* B0 v: R; V until <condition>;0 l L. u6 X/ u- G1 g$ _/ |
(4) for <condition> to <condition> loop
: G I0 c2 X9 n! \ <statement sequence1>;
L" b+ @" P' Z0 X0 N2 X. j! G next;# i# r# U* a* t! o7 a! S- Z
3中断语句0 J( t J- T. N
waituntil <condition> prio <integer expression>;
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% o7 w2 i- Q8 i' ^' Y4 @以上为常用的函数！
w. M! c; V1 p. k, L还有很多，如有需要我把资料发到你邮箱里 5 i- c" k |3 C6 C o7 ~, Y
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