L = ['you','me','you','me','you','me','you'] D = {} for i in L: D[i] += 1 print(D) 执行以下代码会发生错误 Traceback (most recent call last): File line 4, in <module> D[i] += 1 KeyError: 'you' Process finished with exit code 1 为什么呢?因为我们在定义字典的时候没设置默认值,电脑找不到相应对象,
mariadb设置初始密码 CENTOS7 自带MARIADB数据库.安装的时候可以勾选安装. 当然也可以以后在CENTOS7里面添加安装. MARIADB安装后,默认是没有密码的. 我们需要给ROOT用户设置一个初始密码. mysql -u root use mysql; update user set password=password("root")where user='root'; flush privileges; exit; 测试: mysql -u root -p
随机初始化Embedding from keras.models import Sequential from keras.layers import Embedding import numpy as np model = Sequential() model.add(Embedding(1000, 64, input_length=10)) # the model will take as input an integer matrix of size (batch, input_lengt
