Python如何在字典中打印字符串中的反斜杠？

Question

我有一本字典有一些字符串，其中一个字符串中有两个反斜杠。我想用一个反斜杠代替它们。在

这些是反斜杠：IfNotExist\\u003dtrue

Configurations = {
        "javax.jdo.option.ConnectionUserName": "test",
        "javax.jdo.option.ConnectionDriverName": "org.mariadb.jdbc.Driver",
        "javax.jdo.option.ConnectionPassword": "sxxxsasdsasad",
        "javax.jdo.option.ConnectionURL": "jdbc:mysql://hive-metastore.cr.eu-west-1.rds.amazonaws.com:3306/hive?createDatabaseIfNotExist\\u003dtrue"

}
print (Configurations)

当我打印时，它总是显示两个反斜杠。我知道转义反斜杠的方法是使用\ this在常规字符串中有效，但在字典中不起作用。在

有什么想法吗？在

Answer 1

当你用 print (Configurations)，它将打印出字典的repr（）值

你会得到

{'javax.jdo.option.ConnectionDriverName': 'org.mariadb.jdbc.Driver', 'javax.jdo.option.ConnectionUserName': 'test', 'javax.jdo.option.ConnectionPassword': 'sxxxsasdsasad', 'javax.jdo.option.ConnectionURL': 'jdbc:mysql://hive-metastore.cr.eu-west-1.rds.amazonaws.com:3306/hive?createDatabaseIfNotExist\\u003dtrue'}

你需要用 print (Configurations["javax.jdo.option.ConnectionURL"])

或者 print (str(Configurations["javax.jdo.option.ConnectionURL"])) 注：str（）增加

那么输出将是

jdbc:mysql://hive-metastore.cr.eu-west-1.rds.amazonaws.com:3306/hive?createDatabaseIfNotExist\u003dtrue

有关详细信息，请查看Python Documentation - Fancier Output Formatting

The str() function is meant to return representations of values which are fairly human-readable, while repr() is meant to generate representations which can be read by the interpreter (or will force a SyntaxError if there is no equivalent syntax).