python统计函数被调用次数的实现

class CallingCounter(object):
    def __init__ (self, func):
        self.func = func
        self.count = 0

    def __call__ (self, *args, **kwargs):
        self.count += 1
        return self.func(*args, **kwargs)

@CallingCounter
def test():
    print('我被调用了')

test()
print(f'我被调用了{test.count}次')

class CallingCounter(object):
    def __init__ (self, func):
        self.func = func
        self.count = 0

    def __call__ (self, *args, **kwargs):
        self.count += 1
        return self.func(*args, **kwargs)

class Test:
    @CallingCounter
    def test():
        print('我被调用了')

for i in range(10):
    Test.test()

print(f'我被调用了{Test.test.count}次')

def call_counter(func):
    def helper(*args, **kwargs):
        helper.calls += 1
        return func(*args, **kwargs)
    helper.calls = 0
    helper.__name__= func.__name__
    return helper
    
# 下面是使用装饰器
@call_counter
def f():
    pass
print(f.calls)

for _ in range(10):
    f()
print(f.calls)
# 0 10

# 这里是另一种调用方式
def f():
    pass
f = call_counter(f)
print(f.calls)

for _ in range(10):
    f()
print(f.calls)
# 0 10

calls = 0

def f():
    global calls 
    calls  += 1
    # do your func stuff here
    
## 如果想统计class中的函数使用次数，同理

class Test(object):
    def __init__(self):
        self.calls = 0
    def f(self):
        self.calls += 1
        # do your func stuff here

class Test(object):
    calls = 0
    def __init__(self):
        pass
    def f(self):
        Test.calls += 1
        # do your func stuff here

# 调用方式
# Test().f()

A = Test()
for i in range(10):
    A.f()
print(A.calls)
print(Test().calls)
print(Test.calls)