I have the following situation: typedef void (*F_POINTER)(ClassName*); class ClassName { public: F_POINTER f;
It may not be a good idea to name a variable after a reserved word, but I am curious: Is there any escape syntax in Python to allow you to use a reserved wo开发者_运维知识库rd as the name of a variab
Yet another ruby question but this is a bunch of questions in one. I\'m really starting to like rails but there are some questions that I\'d just like to ask straight out.
I am using a loop to go through the result of query and display the data in a grid. I only want to display the delete button in certain rows. I can setup if else statements for that.
I started learning rails a few days ago and I\'m reading head first rails (Dont judge, we all have to start somewhere). It seems to be using rails 2.3 whereas I\'m using 3.0....
I have a string with \'item->anotheritem\' I want to use this as a dyanmic variable. Is this possible?
I have made an upgrade for my MySQL Server to 5.1.39 and now when I run SQL scripts (which had worked previously) - it throws error. I have checked syntax many times and I couldn\'t find any incompati
I am writing a compiler of mini-pascal in Ocaml. I would like my compiler to accept the following code for instance:
I am trying to set an action for when a select value is between 0 and 2, but with the function below, I am getting the action triggering when the value is not defined. What is the best method for doin
This question already has answers here: Closed 11 years ago. Possible Duplicate: Reference - What does this symbol mean in PHP?
加载中,请稍侯......