xirongxudlut 2020-06-09
def fun():
s="python"
print("%s address is %d" % (s,id(s)))
return s
f=fun()
print("%s address is %d" % (f,id(f)))
运行结果:
python address is 3049855780144
python address is 3049855780144
函数返回时,通过对地址的引用得到python ,即r 和s都是对py所在内存空间的引用