//job[@salary<"100" or !@salary]@H_301_2@ 此代码无效.哪一个是?谢谢!
此代码无效.哪一个是?谢谢!
//job[@salary<"100" or not(@salary)]@H_301_2@ xpath中没有not运算符.见http://www.w3schools.com/xpath/xpath_operators.asp
xpath中没有not运算符.见http://www.w3schools.com/xpath/xpath_operators.asp