图片里黄色块：这是lst列表的内存地址【字符串在列表中：同样的字符内存地址一样嘛】
浅拷贝
print("浅拷贝")
import copy
lst = ['str2', 'str3', 'str4']
sourcelst = ['str1', 'str2', 'str3', lst]
copylst = copy.copy(sourcelst)
print("--->【*】sourcelst: ",id(sourcelst), sourcelst)
print("***>【*】copylst : ",id(copylst), copylst)
print("+++>【*】lst : ",id(lst), lst)
print("--->sourcelst id:",[id(ele) for ele in sourcelst])
print("***>copylst id: ",[id(ele) for ele in copylst])
print("+++>lst id: ",[id(ele) for ele in lst])
print("\n1.当sourceLst列表发生变化，copyLst中存储的lst内存地址没有改变")
sourcelst.append('source')
copylst.append('copy')
print("\t--->添加【source】sourcelst: ",id(sourcelst), sourcelst)
print("\t***>添加【copy】copylst : ",id(copylst), copylst)
print("\t--->sourcelst id:",[id(ele) for ele in sourcelst])
print("\t***>copylst id:",[id(ele) for ele in copylst])
print("\n2.sourceLst的第一个元素发生了变化。而copyLst还是存储了str1的地址，所以copyLst不会发生改变。")
sourcelst[0] = 'change'
print("\t--->修改【[0]=change】sourcelst: ",id(sourcelst), sourcelst)
print("\t***> copylst : ",id(copylst), copylst)
print("\t--->sourcelst id:",[id(ele) for ele in sourcelst])
print("\t***>copylst id:",[id(ele) for ele in copylst])
print("\n3.以当lst发生改变的时候，sourceLst和copyLst两个列表就都发生了改变。")
lst.append('Append')
print("\t--->【*】sourcelst: ",id(sourcelst), sourcelst)
print("\t***>【*】copylst : ",id(copylst), copylst)
print("\t+++>【*】lst : ",id(lst), lst)
print("\t--->sourcelst id:",[id(ele) for ele in sourcelst])
print("\t***>copylst id: ",[id(ele) for ele in copylst])
print("\t+++>lst id: ",[id(ele) for ele in lst])
输出
浅拷贝
--->【*】sourcelst: 2570876328328 ['str1', 'str2', 'str3', ['str2', 'str3', 'str4']]
***>【*】copylst : 2570876329544 ['str1', 'str2', 'str3', ['str2', 'str3', 'str4']]
+++>【*】lst : 2570876328520 ['str2', 'str3', 'str4']
--->sourcelst id: [2570876140824, 2570876139984, 2570876141048, 2570876328520]
***>copylst id: [2570876140824, 2570876139984, 2570876141048, 2570876328520]
+++>lst id: [2570876139984, 2570876141048, 2570876463232]
1.当sourceLst列表发生变化，copyLst中存储的lst内存地址没有改变
--->添加【source】sourcelst: 2570876328328 ['str1', 'str2', 'str3', ['str2', 'str3', 'str4'], 'source']
***>添加【copy】copylst : 2570876329544 ['str1', 'str2', 'str3', ['str2', 'str3', 'str4'], 'copy']
--->sourcelst id: [2570876140824, 2570876139984, 2570876141048, 2570876328520, 2570832868496]
***>copylst id: [2570876140824, 2570876139984, 2570876141048, 2570876328520, 2570832271768]
2.sourceLst的第一个元素发生了变化。而copyLst还是存储了str1的地址，所以copyLst不会发生改变。
--->修改【[0]=change】sourcelst: 2570876328328 ['change', 'str2', 'str3', ['str2', 'str3', 'str4'], 'source']
***> copylst : 2570876329544 ['str1', 'str2', 'str3', ['str2', 'str3', 'str4'], 'copy']
--->sourcelst id: [2570837371232, 2570876139984, 2570876141048, 2570876328520, 2570832868496]
***>copylst id: [2570876140824, 2570876139984, 2570876141048, 2570876328520, 2570832271768]
3.以当lst发生改变的时候，sourceLst和copyLst两个列表就都发生了改变。
--->【*】sourcelst: 2570876328328 ['change', 'str2', 'str3', ['str2', 'str3', 'str4', 'Append'], 'source']
***>【*】copylst : 2570876329544 ['str1', 'str2', 'str3', ['str2', 'str3', 'str4', 'Append'], 'copy']
+++>【*】lst : 2570876328520 ['str2', 'str3', 'str4', 'Append']
--->sourcelst id: [2570837371232, 2570876139984, 2570876141048, 2570876328520, 2570832868496]
***>copylst id: [2570876140824, 2570876139984, 2570876141048, 2570876328520, 2570832271768]
+++>lst id: [2570876139984, 2570876141048, 2570876463232, 2570876464520]
