function y=lagr(x0,y0,x)
%x0,y0为节点
%x是插值点
n=length(x0);
m=length(x);
for i=1:m
z=x(i);
s=0.0;
for k=1:n
p=1.0;
for j=1:n
if j~=k
p=p*(z-x0(j))/(x0(k)-x0(j));
end
end
s=p*y0(k)+s;
end
y(i)=s;
end
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002188s ]
SELECT `a`.`aid`,`a`.`title`,`a`.`create_time`,`m`.`username` FROM `jrk_downrecords` `a` INNER JOIN `jrk_member` `m` ON `a`.`uid`=`m`.`id` WHERE `a`.`status` = 1 GROUP BY `a`.`aid` ORDER BY `a`.`create_time` DESC LIMIT 10 [ RunTime:0.154562s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.007474s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.007358s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002610s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.011353s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.028373s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.009426s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015833s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001076s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 513680 [ RunTime:0.016648s ]
