值拷贝实例：
>> a=[1,2]
=> [1, 2]
>> b=Array.new(a)
=> [1, 2]
>> b.delete(1)
=> 1
>> b
=> [2]
>> a
=> [1, 2]
指针拷贝实例：
>> a=[1,2]
=> [1, 2]
>> b=a
=> [1, 2]
>> b.delete(1)
=> 1
>> b
=> [2]
>> a
=> [2]
ruby中数组用=号赋值是指针 ...
- 2009-01-31 08:14
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