1、
>>> a = dict(zip(["one","two","three"],[100,200,300])) >>> a {'one': 100, 'two': 200, 'three': 300} >>> b = a >>> b {'one': 100, 'two': 200, 'three': 300} >>> a = {} >>> a {} >>> b {'one': 100, 'two': 200, 'three': 300}
2、
>>> a = dict(zip(["one","two","three"],[100,200,300])) >>> a {'one': 100, 'two': 200, 'three': 300} >>> b = a >>> b {'one': 100, 'two': 200, 'three': 300} >>> del a >>> a Traceback (most recent call last): File "<pyshell#1339>", line 1, in <module> a NameError: name 'a' is not defined >>> b {'one': 100, 'two': 200, 'three': 300}
3、
>>> a = dict(zip(["one","two","three"],[100,200,300])) >>> a {'one': 100, 'two': 200, 'three': 300} >>> b = a >>> b {'one': 100, 'two': 200, 'three': 300} >>> a.clear() >>> a {} >>> b {}