python学习之路网络编程篇（第一篇）

新课程知识的引入：python作用域

#python中无块级别作用域

if  1 == 1 :
    name = ‘alex‘

print(name)

for i in range(10):
    name = i
print(name)

#python中以函数为作用域

def func():
    name = ‘alex‘

print(name)

#程序执行结果
# Traceback (most recent call last):
#   File "D:/PythonS13/Day10/С????1_python??????.py", line 22, in <module>
#     print(name)
# NameError: name ‘name‘ is not defined