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发表于 2012-11-13 08:48:12
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1判断语句7 K9 R3 a$ b$ Z+ Q4 R0 C8 A
if <condition> then
4 F7 a7 s. b7 w8 o <statement sequence1>;7 h% b0 p; {0 Q2 B. p. ^
elseif <condition> then
; n1 |7 T* K' x* [ <statement sequence2>;5 w2 n- Z d- t6 j9 h# {
else
- S( G1 ?+ ~4 x8 Z) U3 _ n <statement sequence3>;
: n' }' C, d9 f) x) f8 U3 _ end;) \2 Q+ y* z, x) s, a) s6 b# j
如果分支比较多，用：+ U+ m, g' w3 @- v h- H9 D3 ~$ s
inspect <expression>% s7 G& R1 }8 G' B/ _9 U. B! D1 l
when <constant_list> then
2 c: ^5 H) l G. S0 J <statement sequence1>; V: e% a3 b6 n* i I
when <constant_list> then% _5 S/ n/ o( n2 V
<statement sequence2>;: x' w; O% ]3 B" i z( X
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else
; D: Q- O/ X5 J <statement sequence3>;
' C5 \( f& {1 W9 a/ fend;
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- J3 \7 f# c. I1 `2循环语句
; s7 l! ^5 \$ P" H' [: ` (1) from <statement sequence1>
) o) Q! [( s% R! P7 y until <condition> loop
+ v! O. N' N% b8 ^ <statement sequence2>;
4 a" q! t( D1 E6 A5 E. ]( [8 G$ M end;
; p- _* q* K9 @ (2) while <condition> loop
1 v9 ^, h! Q. A2 z <statement sequence1>;% r! i8 O) L6 D3 p6 K2 O
end;
) a" I0 D1 r5 Q% X4 S Y+ }( Q (3) repeat
3 ], P+ @1 V0 V9 \# F <statement sequence1>;
$ f0 u8 T g* O! |$ E% H until <condition>;
' [% L! o/ e1 l9 k' K* t7 N (4) for <condition> to <condition> loop
7 O7 g; l" ]# f9 x9 M0 `0 d <statement sequence1>;7 F& k2 b# S6 K7 T( C& c. X
next;$ v/ D/ g( f& P+ |2 c
3中断语句% q/ @1 B6 n+ e1 T/ C" W9 N' C+ m
waituntil <condition> prio <integer expression>;
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, F/ C5 {) V F% {以上为常用的函数！
8 Z- o5 F8 J* v3 i) k3 e3 c还有很多，如有需要我把资料发到你邮箱里 3 E4 A: _& N3 n2 E; i
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