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发表于 2012-11-13 08:48:12
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1判断语句
9 ]& O q0 v; T: I' _ if <condition> then" {% H8 r: Z$ V1 z9 Y
<statement sequence1>;
" E S$ P) B, } w- |/ X* s elseif <condition> then
1 S5 J" s7 P( r+ g <statement sequence2>;
1 R9 N; _1 ~* X# O else
. S# V0 n- f) H2 | <statement sequence3>;4 q! D. B$ p4 ~0 o; c
end;
* W* J% N; u, }; E: V3 o+ {如果分支比较多，用：7 w5 b6 I% {/ e% j, t
inspect <expression> |# t+ E7 x. W* e1 b0 H/ l
when <constant_list> then
4 o r% S: r: U" e' j9 F <statement sequence1>;5 j" I2 ]3 s# a2 [2 |0 I
when <constant_list> then
" j8 K1 R4 o& C# m* R7 C1 U7 _6 q <statement sequence2>;+ N% M$ J* u% [ x4 ~% J
...1 A) x* B; ?8 F w( @" S
else
1 r1 ?" \. b+ Z- p/ k <statement sequence3>;7 s1 H( R( F v4 S4 L: j( Q
end;% x% Q* j# H% b
' S' K0 h# Y: O1 A. ?2循环语句4 h- t2 ?+ j, ]6 s! ~6 s, P& j p7 r9 Y; U
(1) from <statement sequence1>' {9 o7 n/ U" F* z5 \
until <condition> loop( K4 P% F% k( Z# y4 c
<statement sequence2>;7 p& c! l) W' T' q) V
end;
' A8 O! }1 z+ B% _, y (2) while <condition> loop
$ p# \/ B* V( z$ I7 ^ <statement sequence1>;
) Z6 Z0 I8 `; S5 V: l: {6 M end;- G" r- V4 C% N4 k+ x% j6 d! _
(3) repeat
& Q2 T. z8 b4 O, B7 S <statement sequence1>;
; j2 W- r' C6 o! L, q until <condition>;
9 e" {3 |, f: y% v9 j C (4) for <condition> to <condition> loop
' J0 o8 {: b. M G: j <statement sequence1>;
( Y, g4 \. I2 {8 k. l/ o8 g& F4 c next;8 ~8 d6 G, g5 Y9 j* `1 V! p3 Z1 r* g
3中断语句+ x( ~- a# e) m* {- H% U7 u
waituntil <condition> prio <integer expression>;8 D$ Z! U8 X |8 @9 ]& V! }
+ ~; n5 ?6 \ v5 o( G: D& m4 T/ N/ w
, Z; t4 W% m* y' R. S) n$ ~% T以上为常用的函数！
3 j' {9 d7 H& O+ Y( f- V" F/ N9 `还有很多，如有需要我把资料发到你邮箱里 " O+ n' ?1 J- r
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