python - 将循环的输出保存到文件

Question

我想将 for 循环的输出 (0,1,1,2,3) 保存到文件中，但我的代码只写入循环的最后一个值 (3)。我该如何修复它？

#!/usr/bin/python

def fib(n):
    a, b = 0, 1
    for i in range(0, n):
        a, b = b, a + b
    return a
for c in range(0, 5):
   print(fib(c))
   file=open("fib.txt","w")
   s = str(fib(c))
   file.write(s+"\n")
#   file.write("%s\n" % fib(c))
   file.close()

Answer 1

尝试一下。

def fib(n):
    a, b = 0, 1
    for i in range(0, n):
        a, b = b, a + b
    return a
file=open("fib.txt", "a")
for c in range(0, 5):
   print(fib(c))
   s = str(fib(c))
   file.write(s + "\n")
file.close()