关于python 累加变量有些不解之处求答案,python累加, for i in


   for i in range(0,len(row)):     strs = i;     print(strs)          我想要strs 的值是 0,1,2,3  就是一个累加的字符串

s = ''

for i in range(0,5):

s += str(i)+','

print(s)

strs = ','.join([str(_) for _ in range(4)])print strs

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