美好的事可不可以发生在我身上？ ------
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摘要：
import threadingnum = 0lock = threading.Lock()def first_threading(): global num for i in range(10000): lock.acquire() num += 1 lock.release()def secon
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posted @ 2022-01-04 18:06
Leshol
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摘要：
# 1/深拷贝对不可变里边嵌套了可变的，会先对可变进行空间重新开辟，在对外边儿的不可变也进行空间重新开辟# 1/如果不可变里边嵌套的也是不可变,就不会开辟新空间.# 2/对可变类型,会对任何一层可变类型数据都进行空间重新开辟.# 3/浅拷贝对可变类型数据,只对第一层数据进行空间重新开始开辟# 3/浅
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posted @ 2022-01-04 17:16
Leshol
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摘要：
# 1/深拷贝对不可变里边嵌套了可变的，会先对可变进行空间重新开辟，在对外边儿的不可变也进行空间重新开辟# 1/如果不可变里边嵌套的也是不可变,就不会开辟新空间.# 2/对可变类型,会对任何一层可变类型数据都进行空间重新开辟.# 3/浅拷贝对可变类型数据,只对第一层数据进行空间重新开始开辟# 3/浅
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posted @ 2022-01-04 17:15
Leshol
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