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Description: 通过css+js实现树形结构，只需要改动html里的源码，就可以得到你要的结果。-java checktree
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Author: 王欣 |
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Description: 每一本正式出版的图书都有一个ISBN号码与之对应，ISBN码包括9位数字、1位识别码和3位分隔符，其规定格式如“x-xxx-xxxxx-x”，其中符号“-”是分隔符（键盘上的减号），最后一位是识别码，例如0-670-82162-4就是一个标准的ISBN码。ISBN码的首位数字表示书籍的出版语言，例如0代表英语；第一个分隔符“-”之后的三位数字代表出版社，例如670代表维京出版社；第二个分隔符之后的五位数字代表该书在该出版社的编号；最后一位为识别码。
识别码的计算方法如下：
首位数字乘以1加上次位数字乘以2……以此类推，用所的结果mod11，所得的余数即为识别码，如果余数为10，则识别码为大写字母X。例如ISBN号码0-670-82162-4中的识别码4是这样得到的：对067082162这9个数字，从左到右，分别乘以1，2，…9，再求和，即0×1+6×2+……+2×9＝158，然后取158 mod 11的结果4作为识别码。
你的任务是编写程序判断输入的ISBN号码中识别码是否正确，如果正确，则仅输出“Right”；如果错误，则输出你认为是正确的ISBN号码。 -Each of the official publication of the book has an ISBN number corresponding , ISBN code includes nine digits, an identification code and three separators , its provisions formats such as "x-xxx-xxxxx-x", where the symbol "- "is the delimiter ( minus sign on the keyboard ) , the last one is the identifier , such as ISBN 0-670-82162-4 is a standard code . The first digit ISBN code indicates book publishing language , such as 0 for English first delimiter- After three figures represent the Press, for example, 670 on behalf of Viking Press , " " five after the second delimiter the book publishing figures represent the number the last one for the ID.
ID is calculated as follows :
The first digit is multiplied by 1 plus the second digit is multiplied by 2 ...... and so , with the result that the mod11, the remainder is the identification code , if the remainder is 10 , then the identification code to uppercase X. ISBN 0-670-82162-4 e.g. the ID number 4 is thus obtained : A
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Author: 程春阳 |
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