【python】比较任意形式的两列表list()的不同元素

用集合set（）解决。

示例如下：

#两个复杂的列表如下

A1=['0,63: 0.0147', '2,13: 0.0192', '2,49: 0.0133', '2,56: 0.0164', '2,79: 0.0156', '3,56: 0.0133', '3,68: 0.0112', '3,73: 0.0250', '4,44: 0.0208', '4,58: 0.0185', '4,59: 0.0227', '4,79: 0.0159', '4,87: 0.0208', '5,48: 0.0476', '5,55: 0.0333', '5,72: 0.0345', '6,8: 0.0278', '6,56: 0.0217', '7,9: 0.0175', '7,75: 0.0164', '7,84: 0.0179', '8,46: 0.0244', '9,37: 0.0189', '10,91: 0.0159', '10,99: 0.0147', '12,14: 0.0182', '12,76: 0.0172', '12,82: 0.0164', '12,92: 0.0400', '13,20: 0.0286', '13,21: 0.0145', '13,37: 0.0204', '13,56: 0.0161', '13,88: 0.0139', '14,34: 0.0185', '14,99: 0.0238', '16,17: 0.0556', '16,65: 0.0270', '16,85: 0.0182', '16,92: 0.0357', '18,28: 0.0244', '18,31: 0.0182', '18,43: 0.0169', '19,21: 0.0179', '19,47: 0.0244', '19,71: 0.0278', '19,94: 0.0175', '20,29: 0.0323', '20,38: 0.0185', '20,72: 0.0435', '20,84: 0.0263', '20,88: 0.0185', '21,36: 0.0109', '21,50: 0.0120', '21,75: 0.0130', '21,79: 0.0123', '21,88: 0.0114', '22,90: 0.0244', '23,58: 0.0127', '23,59: 0.0145', '23,95: 0.0123', '23,98: 0.0102', '24,72: 0.0233', '25,66: 0.0244', '25,72: 0.0208', '27,67: 0.0385', '27,76: 0.0149', '27,93: 0.0135', '28,75: 0.0208', '30,56: 0.0233', '30,93: 0.0189', '31,56: 0.0159', '32,95: 0.0294', '33,74: 0.0244', '35,59: 0.0161', '36,87: 0.0137', '37,42: 0.0278', '38,67: 0.0143', '38,97: 0.0161', '39,71: 0.0303', '39,77: 0.0435', '39,90: 0.0435', '40,59: 0.0294', '40,66: 0.0455', '40,90: 0.0370', '41,50: 0.0189', '41,78: 0.0179', '42,76: 0.0192', '43,44: 0.0182', '43,70: 0.0182', '44,45: 0.0149', '44,78: 0.0149', '44,90: 0.0278', '45,75: 0.0128', '45,83: 0.0161', '46,62: 0.0400', '47,81: 0.0167', '47,85: 0.0167', '48,51: 0.1250', '48,86: 0.0714', '50,52: 0.0179', '50,87: 0.0156', '51,69: 0.0238', '53,64: 0.0182', '53,86: 0.0238', '54,75: 0.0123', '54,96: 0.0172', '55,95: 0.0213', '56,67: 0.0167', '57,66: 0.0208', '57,93: 0.0116', '58,69: 0.0143', '58,87: 0.0189', '60,64: 0.0250', '62,90: 0.0455', '63,93: 0.0112', '65,94: 0.0172', '69,80: 0.0130', '70,80: 0.0167', '71,87: 0.0217', '72,77: 0.0370', '74,75: 0.0185', '74,90: 0.0312', '75,78: 0.0128', '75,89: 0.0244', '78,85: 0.0132', '81,99: 0.0122', '82,89: 0.0208', '87,90: 0.0278', '88,91: 0.0111', '91,98: 0.0108', '92,98: 0.0185']
A2=['0,63: 0.0147', '2,13: 0.0192', '2,49: 0.0133', '2,56: 0.0164', '2,79: 0.0156', '3,56: 0.0133', '3,68: 0.0112', '3,73: 0.0250', '4,44: 0.0208', '4,58: 0.0185', '4,59: 0.0227', '4,79: 0.0159', '4,87: 0.0208', '5,48: 0.0476', '5,55: 0.0333', '5,72: 0.0345', '6,8: 0.0278', '6,56: 0.0217', '7,9: 0.0175', '7,75: 0.0164', '7,84: 0.0179', '8,46: 0.0244', '9,37: 0.0189', '10,91: 0.0159', '10,99: 0.0147', '12,14: 0.0182', '12,76: 0.0172', '12,82: 0.0164', '12,92: 0.0400', '13,20: 0.0286', '13,21: 0.0145', '13,37: 0.0204', '13,56: 0.0161', '13,88: 0.0139', '14,34: 0.0185', '14,99: 0.0238', '16,17: 0.0556', '16,65: 0.0270', '16,85: 0.0182', '16,92: 0.0357', '18,28: 0.0244', '18,31: 0.0182', '18,43: 0.0169', '19,21: 0.0179', '19,47: 0.0244', '19,71: 0.0278', '19,94: 0.0175', '20,29: 0.0323', '20,38: 0.0185', '20,72: 0.0435', '20,84: 0.0263', '20,88: 0.0185', '21,36: 0.0109', '21,50: 0.0120', '21,75: 0.0130', '21,79: 0.0123', '21,88: 0.0114', '22,90: 0.0244', '23,58: 0.0127', '23,59: 0.0145', '23,95: 0.0123', '23,98: 0.0102', '24,72: 0.0233', '25,66: 0.0244', '25,72: 0.0208', '27,67: 0.0385', '27,76: 0.0149', '27,93: 0.0135', '28,75: 0.0208', '30,56: 0.0233', '30,93: 0.0189', '31,56: 0.0159', '32,95: 0.0294', '33,74: 0.0244', '35,59: 0.0161', '36,87: 0.0137', '37,42: 0.0278', '38,67: 0.0143', '38,97: 0.0161', '39,71: 0.0303', '39,77: 0.0435', '39,90: 0.0435', '40,59: 0.0294', '40,66: 0.0455', '40,90: 0.0370', '41,50: 0.0189', '41,78: 0.0179', '42,76: 0.0192', '43,44: 0.0182', '43,70: 0.0182', '44,45: 0.0149', '44,78: 0.0149', '44,90: 0.0278', '45,75: 0.0128', '45,83: 0.0161', '46,62: 0.0400', '47,81: 0.0167', '47,85: 0.0167', '48,51: 0.1250', '48,86: 0.0714', '50,52: 0.0179', '50,87: 0.0156', '51,69: 0.0238', '53,64: 0.0182', '53,86: 0.0238', '54,75: 0.0123', '54,96: 0.0172', '55,95: 0.0213', '56,67: 0.0167', '57,66: 0.0208', '57,93: 0.0116', '58,69: 0.0143', '58,87: 0.0189', '60,64: 0.0250', '62,90: 0.0455', '63,93: 0.0112', '65,94: 0.0172', '69,80: 0.0130', '70,80: 0.0167', '71,87: 0.0217', '72,77: 0.0370', '74,75: 0.0185', '74,90: 0.0313', '75,78: 0.0128', '75,89: 0.0244', '78,85: 0.0132', '81,99: 0.0122', '82,89: 0.0208', '87,90: 0.0278', '88,91: 0.0111', '91,98: 0.0108', '92,98: 0.0185']

print(set(A1)-set(A2))

输出结果：

{'74,90: 0.0312'}