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发表于 2012-11-13 08:48:12
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1判断语句2 K/ M/ V8 o6 e0 u! H# ]4 U
if <condition> then' x0 T. G0 J1 u/ ^6 S0 }
<statement sequence1>;; W$ A& k; L+ U" Q# a. x
elseif <condition> then
* J! `( i( b" d4 a+ D. j' n <statement sequence2>;
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<statement sequence3>;
! k% v9 U+ w' D) I) j9 t6 c! b4 _9 h end;, k3 F+ ]3 j$ ~1 L, o
如果分支比较多，用：0 F- @ `/ r$ f p: g; a5 a
inspect <expression>8 R4 {# j. {: |2 U8 o3 v2 T6 v
when <constant_list> then0 c1 H: `# m0 q, i4 N$ r+ e
<statement sequence1>;
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<statement sequence2>;* ` S# e( b0 \) e6 o
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else
u+ K- [9 X5 B- X# c, x <statement sequence3>;) @) Z0 X* ?6 s+ X6 w2 ~
end;
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& i. c( Y* S( g4 ?8 |2循环语句) ?8 X) D# G& u0 h# b
(1) from <statement sequence1>
$ a# P8 k# a' b2 Q until <condition> loop
9 z/ R* |7 |3 Z3 z# `. y0 c <statement sequence2>;
: K; }- ^0 \) ^; e/ l+ `8 I9 U end;3 h! a+ _/ U) p4 J
(2) while <condition> loop7 V6 Z3 I' E$ \" Q5 | H
<statement sequence1>;
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(3) repeat
& M- a c, |% Q' W) ] <statement sequence1>;+ n& f: }0 c M, K' M
until <condition>;' F9 e* |5 L5 }3 E/ T
(4) for <condition> to <condition> loop; ~# ?4 o- @& k
<statement sequence1>;
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3中断语句
$ B2 u3 `9 f4 w7 d5 s/ K- q waituntil <condition> prio <integer expression>;. J& P- l6 {7 [5 R2 a# ]7 s
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7 ^4 ]" d' K& W4 x7 X以上为常用的函数！
. P7 T8 c5 ?4 f2 _还有很多，如有需要我把资料发到你邮箱里
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