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发表于 2012-11-13 08:48:12
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1判断语句% g8 a! j: J4 E" c6 W
if <condition> then
$ Q U8 @8 y( b9 M! D+ ] <statement sequence1>;
3 {- j" a5 \0 [9 F4 Z" \1 S elseif <condition> then
8 Z0 H, W* O1 I! q- W+ | <statement sequence2>;/ o( o+ w8 Q2 D/ ]' d# k5 A2 m
else
# n& O# j9 J7 K* } <statement sequence3>;6 k5 ~/ o$ S: e. I- m* o5 v
end;1 L) M9 u& x, I- Q
如果分支比较多，用：
8 R A" @: Z5 _" L, c1 Q' t inspect <expression>
+ x d( l! ?4 c2 M, S when <constant_list> then8 h" w1 l7 ~* O# n5 o: ~/ f7 s
<statement sequence1>;
6 q( `: j i- h0 `- k, r/ J# Q when <constant_list> then
+ M8 z2 K" P( ]* D8 h5 D <statement sequence2>;
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else
; H: J/ x% O5 L/ S$ i <statement sequence3>;- _8 a- C0 M8 l
end;
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2循环语句
5 Y7 Z: I6 g/ I @! c+ {' j1 u8 s U (1) from <statement sequence1>: B @: w4 ~( L- \, S# W
until <condition> loop2 _! u! ?3 l( s: {, Z ]
<statement sequence2>;+ d/ D# [7 `# h& N. R ~; C
end;
3 y. d6 A6 ^6 W! {: r (2) while <condition> loop
) |6 {; v: y, J- g$ q6 S <statement sequence1>;
7 I& w* G$ b5 i: Z end;
$ ^6 T4 W: h6 E$ Y (3) repeat 5 S3 }5 c# D1 q% B" A+ \
<statement sequence1>;3 E! p! n! Q8 G* q) \* G. @
until <condition>;+ {, U5 l: W' D; r! O0 P" l! D
(4) for <condition> to <condition> loop8 z- f7 U7 c# T5 }0 w
<statement sequence1>;
; f R$ e. l* O; s1 Q1 g next;* ?. H+ e: T; ~# x* m( ]
3中断语句
; Y9 ~1 i/ y8 K6 l4 @2 U waituntil <condition> prio <integer expression>;
' }$ G6 o7 ?4 h- h
% r8 J' ]0 F2 z9 g4 q
( \* @; g- j; }5 k% Z! b以上为常用的函数！, F& P: H% u, m- u
还有很多，如有需要我把资料发到你邮箱里 ! U* E. f4 {7 v w/ T
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