清单1显示了一个输入文档，该文档包含纯文本形式的电子邮件地址。
Listing 1 shows an input document that contains email addresses in plain text.
但是，这种密码是以纯文本形式存储在文件中的，很容易就可以查阅。
But, this kind of password is with simple text the form stores in the file, can consult very easily.
绝不应将非对称私钥逐字存储(即以纯文本形式存储)在本地计算机上。
Asymmetric private keys should never be stored verbatim or in plain text on the local computer.
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