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Python extending with - using super() Python 3 vs Python 2
...(when you subclass one class only), your new class inherits methods of the base class. This includes __init__. So if you don't define it in your class, you will get the one from the base.
Things start being complicated if you introduce multiple inheritance (subclassing more than one class at a time...
Creating an abstract class in Objective-C
...
if u add base class and then inherit this class for example 10 times and forgot to implement this in one of classes u will get message with name of Base class not inherited one like Terminating app due to uncaught exception 'NSInvalid...
Rails raw SQL example
...ql = "Select * from ... your sql query here"
records_array = ActiveRecord::Base.connection.execute(sql)
records_array would then be the result of your sql query in an array which you can iterate through.
share
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How to calculate UILabel width based on text length?
... your answer, it worked for me.
For 2014, I edited in this new version, based on the ultra-handy comment by Norbert below! This does everything. Cheers
// yourLabel is your UILabel.
float widthIs =
[self.yourLabel.text
boundingRectWithSize:self.yourLabel.frame.size ...
C#对象序列化与反序列化 - 更多技术 - 清泛网 - 专注IT技能提升
... public Programmer(string name, bool sex, string language)
: base(name, sex)
{
this.Language = language;
}
public override string ToString()
{
return base.ToString() + "\t编程语言：" + this.Language;
}
}
...
C#对象序列化与反序列化 - 更多技术 - 清泛网 - 专注IT技能提升
... public Programmer(string name, bool sex, string language)
: base(name, sex)
{
this.Language = language;
}
public override string ToString()
{
return base.ToString() + "\t编程语言：" + this.Language;
}
}
...
C#对象序列化与反序列化 - 更多技术 - 清泛网 - 专注IT技能提升
... public Programmer(string name, bool sex, string language)
: base(name, sex)
{
this.Language = language;
}
public override string ToString()
{
return base.ToString() + "\t编程语言：" + this.Language;
}
}
...
C#对象序列化与反序列化 - 更多技术 - 清泛网 - 专注IT技能提升
... public Programmer(string name, bool sex, string language)
: base(name, sex)
{
this.Language = language;
}
public override string ToString()
{
return base.ToString() + "\t编程语言：" + this.Language;
}
}
...
C#对象序列化与反序列化 - 更多技术 - 清泛网 - 专注IT技能提升
... public Programmer(string name, bool sex, string language)
: base(name, sex)
{
this.Language = language;
}
public override string ToString()
{
return base.ToString() + "\t编程语言：" + this.Language;
}
}
...
C#对象序列化与反序列化 - 更多技术 - 清泛网 - 专注IT技能提升
... public Programmer(string name, bool sex, string language)
: base(name, sex)
{
this.Language = language;
}
public override string ToString()
{
return base.ToString() + "\t编程语言：" + this.Language;
}
}
...