// The ratio of a circle's circumference to its diameter.  Remember to change
// this to 3.0 if you move to a site in Indiana.

#define Pi                                      3.1415927

//这将为我们每个用户节省0.5秒，并取悦机器精神。

在很长的程序之前:)

我没有这个来源的副本，但我一直记得它:

//如果你想不明白，就不要读这篇文章

从/系统/图书馆/框架/ AppKit.framework /版本/ C /头/ NSTextView.h:

- (void)smartInsertForString:(NSString *)pasteString replacingRange:(NSRange)charRangeToReplace beforeString:(NSString **)beforeString afterString:(NSString **)afterString;
- (NSString *)smartInsertBeforeStringForString:(NSString *)pasteString replacingRange:(NSRange)charRangeToReplace;
- (NSString *)smartInsertAfterStringForString:(NSString *)pasteString replacingRange:(NSRange)charRangeToReplace;

/* Java note: The second and third methods are the primitives and are the 
methods exposed in Java.  The first method calls the other two.  All 
Objective-C code calls the first method.  In either Objective-C or Java any 
overriding should be done for the second and third methods, not the first 
method.  This will all work out correctly with the exception of existing code 
that overrides the first method.  Existing subclasses that do this will not 
have their implementations available to Java developers. Isn't Java wonderful? */

try {

}
catch (SQLException ex) {
    // Basically, without saying too much, you're screwed. Royally and totally.
}
catch(Exception ex)
{
    //If you thought you were screwed before, boy have I news for you!!!
}

//FIXME: fix this before the 1.0 release

他们在第4版