== Java ==
What
The constant pool contains the constants associated with the class or interface defined by the file.
Constants are stored in the constant pool.
literal strings
final variable values
fully qualified names of classes and interfaces
field names and descriptors
method names and descriptors
Symbolic refer继续阅读 »
1. 枚举 - enumerate 可以有参数哦
之前我们这样操作：
i = 0
for item in iterable:
print i, item
i += 1
现在我们这样操作：
for i, item in enumerate(iterable):
print i, item
enumerate函数还可以接收第二个参数。就像下面这样：
list(enumerate('abc'))
[(0, 'a'), (1, 'b'), (2, 'c')]
list(enumerate('abc', 1))
[(1, 'a'), (2, 'b'), (3, 'c'继续阅读 »