- A = "aaa"
- B = "bbb"
- C = "ccc"
- mi = [[A,123],[A,100],[B,100],[B,200],[C,20]]
- # [[A,123],[A,100],[B,100],[B,200],[C,20]] 变成 [[A,223],[B,300],[C,20]]
- infos = {}
- for m in mi:
- if m[0] in infos.keys():
- infos[m[0]] = infos[m[0]] + m[1]
- else:
- infos[m[0]] = m[1]
- print([[k,v] for k,v in infos.items()])
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