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In the actual development process , You will often encounter many identical or very similar operations , At this time , Code that implements similar operations can be encapsulated as functions , Then call the function where you need it . This can not only realize code reuse , It can also make the code more organized , Increase code reliability . Now let's introduce python Function nesting definitions for .
Python Allow nested definitions of functions , That is, another function can be defined inside the function .
for example ： The following code is in print_line() Functions are nested to define print_text() function .
def print_line(): # Definition print_line() function
print("************")
def print_text(): # Nesting definition print_text() function
print("Hello world!")
print_text() # call print_text() function
print_line() # call print_line() function
give the result as follows .
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