undefined column number 任意列表格
All data in a CouchDB database is stored in a document, and each document can be made up of an undefined number of fields.
CouchDB数据库中的所有数据都储存在一个文档中,并且每个文档可以由未定义的字段组成。
They hold only one piece of data: a string, a number, the undefined value, a reference to another variable.
它只保存一段数据:一个字符串、一个数字、未定义的值以及对另一个变量的引用。
In addition, by using the hole edges conditions, the relationship between undefined coefficients is set up, to reduce the number of those coefficients, and only the boundary collocation is needed.
同时,利用内孔边界条件,建立待定系数间的关系式,以减少待定系数的数目,并且只需要在外边界配点。
应用推荐