The use of str() and repr() methods in Python

One 、str() And repr() effect

Are used to convert objects into string output

Two 、 Example

class Foo:
def __init__(self, name, age):
self.name = name
self.age = age
def __str__(self):
return ("str full name :%s Age %s" % (self.name, self.age))
# def __repr__(self):
# return ("repr full name :%s Age %s" % (self.name, self.age))
if __name__ == '__main__':
f = Foo(' Zhang Fei ', '22')
print(f) # Equivalent to calling str(f), It is also equivalent to calling the class __str()__ Method

Output results ：

str full name : Zhang Fei Age 22

class Foo:
def __init__(self, name, age):
self.name = name
self.age = age
# def __str__(self):
# return ("str full name :%s Age %s" % (self.name, self.age))
def __repr__(self):
return ("repr full name :%s Age %s" % (self.name, self.age))
if __name__ == '__main__':
f = Foo(' Zhang Fei ', '22')
print(f) # Equivalent to calling str(f), It is also equivalent to calling the class __str()__ Method

Output results ：

repr full name : Zhang Fei Age 22