nonlocal，指定上一级变量，如果没有就继续往上直到找到为止

name = "刚娘"

def weihou():
    name = "陈卓"
    def weiweihou():
        nonlocal name   # nonlocal，指定上一级变量，如果没有就继续往上直到找到为止
        name = "冷静"

    weiweihou()
    print(name)

print(name)
weihou()
print(name)
# 刚娘
# 冷静
# 刚娘