如何计算数组中有多少个列表？例如，2 是此列表的答案['[["Subject","NotContain","test1"],["Text","Equals","test2"]]']。我曾试图数数，len(dataarray.split()))但每次答案只显示 1 而不是 2。
arr = request.POST.getlist('data[]', None)
print(arr)
//OUTPUT: ['[["Subject","NotContain","test1"],["Text","Equals","test2"]]']
dataarray = " ".join(str(x) for x in arr)
print(len(dataarray.split()))
//OUTPUT: 1
您是否没有意识到这是一个包含单个 JSON 字符串的列表？只需解码 JSON：
arr = request.POST.getlist('data[]', None)
print(arr)
//OUTPUT: ['[["Subject","NotContain","test1"],["Text","Equals","test2"]]']
dataarray = json.loads( arr[0] )
print(dataarray)
//OUTPUT: [["Subject","NotContain","test1"],["Text","Equals","test2"]]
print(len(dataarray))
//OUTPUT: 2
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