def stu(nam):
nam+=nam
print("函数内:nam=",nam)
nam="糖鲲"
print("函数调用前:nam=",nam)
stu(nam)
print("函数调用后:nam=",nam)
ZGVmIHN0dShuYW0pOgogICAgbmFtKz1uYW0KICAgIHByaW50KCLlh73mlbDlhoU6bmFtPSIsbmFtKQpuYW09IuezlumysiIKcHJpbnQoIuWHveaVsOiwg+eUqOWJje+8mm5hbT0iLG5hbSkKc3R1KG5hbSkKcHJpbnQoIuWHveaVsOiwg+eUqOWQjjpuYW09IixuYW0p