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注册账号的函数，传入账号，密码，姓名，邮箱，手机号，借阅天数，可借阅数 username, password, name, email, phone, lend_num, max_num

* Add a column to the list used for the table with default values * @param {object} oSettings dataTables settings object * @param {node} nTh The

* Bind an event handers to allow a click or return key to activate the callback. * This is good for accessibility since a return on the keyboard wil

* Calculate the width of columns for the table * @param {object} oSettings dataTables settings object * @memberof DataTable#oApi

* Calculate the 'type' of a column * @param {object} settings dataTables settings object * @memberof DataTable#oApi

* Provide backwards compatibility for column options. Note that the new options * are mapped onto the old parameters, so this is an external interfa

* Provide backwards compatibility for the main DT options. Note that the new * options are mapped onto the old parameters, so this is an external in

* Create a new TR element (and it's TD children) for a row * @param {object} oSettings dataTables settings object * @param {int} iRow Row to con

* Escape a string such that it can be used in a regular expression * @param {string} sVal string to escape * @returns {string} escaped string

* Extend objects - very similar to jQuery.extend, but deep copy objects, and * shallow copy arrays. The reason we need to do this, is that we don't

* Build a regular expression object suitable for searching a table * @param {string} sSearch string to search for * @param {bool} bRegex treat a

* Return an array with the full table data * @param {object} oSettings dataTables settings object * @returns array {array} aData Master data arr

* Language compatibility - when certain options are given, and others aren't, we * need to duplicate the values over, in order to provide backwards