Read a text file and save value as variable in python

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Using global variables in a function other than the one that created them 18 answers

---

如果您只想与其他功能共享，请使用全局功能

id = 0
def main():
    global id
    ...

---

id = 0 # declare it in the global scope

def main():
    # using the global keyword will let you access it in the function scope
    global id 
    input = file(infile, 'r')
    lines = input.readlines()
    input.close()
    i = 0
    for line in lines:
        i += 1
        id = int(line)
        WorkOnIDThread(id)
main()
print id

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