str 类型的字符串通常被称为普通字符串(plain string),区别于 unicode 类型的字符串(unicode string): >>> s = 'this is a plain string.
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Plain-text string 普通字符串
In the original test client, we sent a plain string to the queue.
在最初的测试客户机中,我们向队列发送一个普通字符串。
If it is a plain string, it is assumed to be a plain column name.
如果是普通字符串,则被当作列名。
On the other hand, many services are built with a somewhat generic interface: one string goes in and one string comes out, or plain binary objects are exchanged.
另一方面,很多服务均使用通用接口构建:一个字符串传入,另一个字符串传出,或者交换纯二进制对象。
You'll notice I have the string with the number 1 MIT a string with MIT, and then it just a plain old number, not a string, again it didn't quite give me 3.3 for reasons we've talked before, a and now it in the list a.
你们可以看到这儿有个以字符串1,形式显示的数字1,1个字符串,还有一个非字符串形式的平常数字,结果并不是3。3,原因之前我们,已经讨论过了,还有一个在list中的。
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