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This topic created in 3534 days ago, the information mentioned may be changed or developed.
Supplement 1 · Nov 20, 2016
已解决
Supplement 2 · Nov 20, 2016
def echo123():
global a
a = a+ 1
print(a)
def main1():
global a
a = 0
echo123()
main1()
global a
a = a+ 1
print(a)
def main1():
global a
a = 0
echo123()
main1()
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1
DeTamble Nov 20, 2016  1
Python 中当局部变量名字和全局变量名字重复时，局部变量会覆盖掉全局变量。
而在 echo123() 中没有定义 a ，所以会报 UnboundLocalError: local variable 'a' referenced before assignment 所以 echo123() 也要加上 global a |
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2
qweweretrt515 OP @DeTamble 谢谢
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