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发表于 2012-11-13 08:48:12
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1判断语句
# b! T B6 w' [; U- f if <condition> then9 P! x/ n+ \4 }; N+ @
<statement sequence1>;
0 `* N% g8 n3 R: E elseif <condition> then$ u! b5 D7 ~! }0 ]' p
<statement sequence2>;8 T2 ^/ }2 j( S- i
else $ c ]! ]+ y/ Z' ?. y
<statement sequence3>;
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如果分支比较多，用：
) w2 {9 N2 o* S9 a5 z inspect <expression>
$ P. Q% H% c- c S' _. m when <constant_list> then
2 a, \& O9 g) f <statement sequence1>;
9 X Z b9 d. g/ c" m4 g when <constant_list> then7 r- `: b3 f9 l3 n1 _$ Q( O8 k: R
<statement sequence2>;
/ E% A# u f, a" L0 }3 ?2 O ...
0 D/ C$ {9 |. m1 f* \0 Z# s else6 R3 {* h: V+ n1 i ^' o6 A
<statement sequence3>;+ S2 p- u/ L4 I2 y( L5 g
end;
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x( S w8 j! d6 I( v& i% V2循环语句* S& \7 S6 s, w Y; u
(1) from <statement sequence1>
s: U. r6 v. | until <condition> loop% l9 J& f ]1 s- a+ a
<statement sequence2>;* y/ k( ]3 t- K, Y* W) B
end;
: i$ {/ ?; \8 {( x' l (2) while <condition> loop
* F, `: ]" A8 Z8 J# z" \ <statement sequence1>;9 O8 g9 y. E p4 W1 B) A
end;
7 i0 E. P0 Z1 Z* i0 \ (3) repeat
7 [9 W) Q/ L3 [! }2 W3 T }: D% y <statement sequence1>;
# K0 W' ]- i% X& z" L) x/ A F1 v until <condition>;
+ u+ ^9 t2 _7 j( D+ @. m# I& k, p (4) for <condition> to <condition> loop
. f: R. v. _, ~) P% ]# r1 j <statement sequence1>;$ g" {* a3 P' {8 A- H7 L
next;
. L$ A1 G2 r$ A4 q3中断语句
8 [& e) w; p. k0 \/ H* G+ y waituntil <condition> prio <integer expression>;
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以上为常用的函数！( V' f+ }8 Y/ f$ a: F3 `! R7 O
还有很多，如有需要我把资料发到你邮箱里 5 v/ o( x# ~" P% y8 G5 ~! f) X& Q
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