# solver:{‘newton-cg’,’lbfgs’,’liblinear’,’sag’,’saga’}
# 默认: ‘liblinear’ 在优化问题中使用的算法。...# 如果选择‘l1’的话就只能用‘liblinear’算法。...# 如果选择‘l2’,solver参数可以选择‘liblinear’、‘newton-cg’、‘sag’和‘lbfgs’这四种算法;
# a) liblinear...','l2','l2','l2','l2']
solvers=['liblinear','newton-cg', 'lbfgs','liblinear' , 'sag', 'saga']...l2', 'l2', 'l2', 'l2', 'l2']
solvers = ['liblinear', 'newton-cg', 'lbfgs', 'liblinear', 'sag', 'saga