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发表于 2012-11-13 08:48:12
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1判断语句4 A" `8 K1 B Z& `- T
if <condition> then& @( @8 a: v% K' Y9 A# _. f' w
<statement sequence1>;+ z$ l8 Q% g, J3 [: q
elseif <condition> then
+ A! p4 r7 T% q <statement sequence2>;3 l1 j( b, m9 D% j6 D% J0 }
else 6 i- \! W5 s& x, l5 A& V, j
<statement sequence3>;6 T7 L% O0 H6 e8 o- A' C
end;2 b, r7 u0 w$ {7 R6 |
如果分支比较多，用：
" K4 C3 m; [% X# D3 L9 L6 P inspect <expression>6 F9 C( o/ S, j2 U( ~/ ?4 Y; \
when <constant_list> then
' C7 u# w9 r. N% ]2 j9 t <statement sequence1>;
: \! d% l8 D( s& {7 x: z) J B1 f when <constant_list> then
" J7 C0 J& k( Y/ b; r- b) } <statement sequence2>;* S6 k Q6 X4 ^3 ~" c
...7 a' k# T! G3 b6 L) {
else
: k( Q% ~. @, `* L$ _* w <statement sequence3>;
5 c! K' L5 C1 O% g+ Qend;
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2循环语句$ Z4 i! P6 E+ T% I( t3 `; O
(1) from <statement sequence1>, o9 V x$ v- u2 h# V
until <condition> loop! E! r6 V+ U' {8 d
<statement sequence2>;: ]) |( S# A6 I5 b
end;
) m3 @3 x: C. H3 G3 K (2) while <condition> loop
' u8 a9 W6 F/ @) j* r <statement sequence1>;
0 m, V- O3 @$ B$ t2 h" t* q end;
9 L7 n$ a* w4 w0 R4 W (3) repeat * L' L5 N% e' [" P0 G, M9 G8 Y* C+ c
<statement sequence1>;
# e# T2 P$ `. \5 x. K until <condition>;: A4 {4 r- e. U: E+ V# u
(4) for <condition> to <condition> loop
% `+ N. q/ H% P6 P( u4 }; d <statement sequence1>;
/ E* O" |! T4 D) X next;
' c) z$ r0 e p* b }3中断语句$ R0 y) s1 q; J2 ^" V
waituntil <condition> prio <integer expression>;: s% ~& `- s g W+ r7 e- |1 y9 {8 V
- V! f6 T3 V" p9 v: t" \
" X; R$ z& u2 p( V( V0 {8 e以上为常用的函数！' t2 c6 w# n+ m- i8 j
还有很多，如有需要我把资料发到你邮箱里
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