以下代码给出了错误:
//  constants.h
extern NSArray const *testArray;//  constants.m
NSArray const *testArray = [NSArray arrayWithObjects:  @"foo", @"bar", nil];我得到的错误是
initializer element is not constant
或者,如果我拿走指针指针(*),我得到:
 statically allocated instance of Objective-C class 'NSArray'