The children method would select all of the immediate children of the element.
children方法将选择元素的所有直接子元素。
The code must select only ELEMENT type nodes, because TEXT nodes do not support this method and produce a non-recoverable error in Perl.
在代码中只能选择element类型的节点，因为该方法不支持TEXT节点，并且会在Perl中产生一个不可恢复的错误。
In this paper, We developed a select main element iterative method. For a class linear system of divergence discussed convergence, and illustrate by examples.
本文提出了一种选主元迭代法。对一类发散的线性系统讨论了其收敛性，并举例说明之。
应用推荐