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发表于 2012-11-13 08:48:12
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1判断语句$ X: Y* F) m% N3 c. l
if <condition> then
0 l* X! f& M4 ^( F0 P <statement sequence1>;
! L( ~! V3 a, }: V. ` elseif <condition> then5 N. C0 H" l! `1 N( R
<statement sequence2>;! F& Q; @2 c1 Q. m- p
else
D' F% Z* B, M( I! N3 X: y <statement sequence3>;
0 c- Y4 Z- R7 y end;4 M. x1 K1 G1 d9 M0 `+ X
如果分支比较多,用:
; j5 C# B) v6 N) N inspect <expression>% B$ X* _ y0 {5 {" W2 a8 {" B- @
when <constant_list> then0 \. I0 G' P6 j& M
<statement sequence1>;8 [, I) v! P4 a, X# L
when <constant_list> then
& g b2 c' v% W <statement sequence2>;2 k; W8 o1 U& J4 \
...; ~# L/ I$ H$ t! w" \
else
5 T" E/ ~: m8 K4 D0 s: i+ e <statement sequence3>;
5 d# d( z* W2 P' D7 ]8 Rend;1 t$ w# z0 \# X6 B, I4 l
0 L2 d+ T- M% P) N& f- Q6 @+ |2循环语句* l1 w, c9 d6 \+ j/ v5 I, `
(1) from <statement sequence1>
J9 n: ]; B: D8 {7 M7 x- u: d until <condition> loop
" q) t3 q7 b' k* |2 c <statement sequence2>;# o( D0 g% z& N l
end;
) [1 t5 r0 O, { (2) while <condition> loop; w6 v! _3 v! s( {$ g. x' x
<statement sequence1>;
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(3) repeat
: `* |8 Z- C' T) ], I <statement sequence1>;2 h. m! R( K8 H$ o. E( C% d
until <condition>;
, D' s2 B5 L: X6 R8 G E (4) for <condition> to <condition> loop/ F" z: v" J% o
<statement sequence1>;% l2 y$ Y# o6 U- n- v0 `
next;
8 l& r- r, g5 O Q. h3中断语句
+ ]' H& ]9 L% T, o1 i waituntil <condition> prio <integer expression>;
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d& B, v X( n/ h" B0 c! ` Q& J4 u, n/ P
以上为常用的函数!
% C# A! k6 R0 a还有很多,如有需要我把资料发到你邮箱里
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