# global variablex =20defadd():# local variable yy =30print('local variable y=', y)# Use global variable xprint('global variable x=', x) z = x + y print('x+y=', z)defsub():# local variable mm =10print('local variable m=', m)# Use global variable x in second functionpr...
# 定义全局变量global_var=10# 在函数中使用全局变量defuse_global_var():globalglobal_varprint("Global variable:",global_var)# 调用函数use_global_var() 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 总结 通过以上步骤,我们可以规范地定义和使用Python全局变量。首先,在程序的任意位置定义全局变量,然后在函...
在上述代码中,set_global_variable()函数内部使用global关键字声明my_variable为全局变量。然后在use_global_variable()函数中直接使用了该全局变量。 2. 使用模块 另一种设置全局变量的方法是使用模块。Python的模块是独立的文件,可以包含变量、函数和类等定义。可以通过在模块中定义变量,然后在其他地方导入该模块来使...
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You’ve learned a lot about using global variables, especially inside your Python functions. You’ve learned that you can access global variables directly in your functions. However, to modify a global variable in a function, you must use either the global keyword or the globals() function. ...
1#define some global variable23A = 14B = 25C = 367deffuck(a=0, b=0, c=0):8globalA, B, C9A =a10B =b11C =c1213deffuck2():14globalA, B, C15print'In fuck2, A = %d, B = %d, C = %d'% (A, B, C) 使用全局变量的文件 use_G.py ...
The global Keyword (global 关键字) Normally, when you create a variable inside a function, that variable is local, and can only be used inside that function. 通常,在函数内部创建变量时,该变量是局部变量,只能在该函数内部使用。 To create a global variable inside a function, you can use the ...
[ARGS]...Options:--where Output project home information.--venv Output virtualenv information.--py Output Python interpreter information.--envs Output Environment Variable options.--rm Remove the virtualenv.--bare Minimal output.--man Display manpage.--support Output diagnostic informationforusein...
use_global() x =10 会报错 NameError: name'x'is not defined 优先级 函数中,有同名的全局变量和局部变量时, 优先使用局部变量。 示例如下 defuse_who(): x =5print(x) x =10use_who() 输出如下 5 3 修改全局变量 在函数外,修改全局变量很简单, ...
We cannot use a local variable outside of the function it is assigned in. If we try to do so, we’ll receive aNameErrorin return. Let’s review another example where we use the same variable name for a global variable and a local variable: ...