尝试使用Python中的字符串格式替换Python字符串中的值时出错

我有这根绳子

S="191042709832779540946_1513246254239&source=%7B%22query%22%3A%7B%22match_all%22%3A%7B%7D%7D%2C%22from%22%3A%s%2C%22size%22%3A20000%2C%22facets%22%3A%7B%22_type%22%3A%7B%22terms%22%3A%7B%22field%22%3A%22_type%22%2C%22size%22%3A102%2C%22order%22%3A%22reverse_term%22%7D%7D%2C%22index.classification.exact%22%3A%7B%22terms%22%3A%7B%22field%22%3A%22index.classification.exact%22%2C%22size%22%3A110%2C%22order%22%3A%22count%22%7D%7D%2C%22index.has_seal.exact%22%3A%7B%22terms%22%3A%7B%22field%22%3A%22index.has_seal.exact%22%2C%22size%22%3A110%2C%22order%22%3A%22count%22%7D%7D%2C%22index.license.exact%22%3A%7B%22terms%22%3A%7B%22field%22%3A%22index.license.exact%22%2C%22size%22%3A110%2C%22order%22%3A%22count%22%7D%7D%2C%22index.publisher.exact%22%3A%7B%22terms%22%3A%7B%22field%22%3A%22index.publisher.exact%22%2C%22size%22%3A110%2C%22order%22%3A%22count%22%7D%7D%2C%22index.language.exact%22%3A%7B%22terms%22%3A%7B%22field%22%3A%22index.language.exact%22%2C%22size%22%3A110%2C%22order%22%3A%22count%22%7D%7D%7D%7D&_=1513246254241"

在上面的字符串中，我必须在某个地方替换一个整数。为此，我使用了%s

s = S % 100

然后我得到了以下错误

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ValueError: unsupported format character 'B' (0x42) at index 51

回溯（最近一次呼叫最后一次）：
文件“”，第1行，在
ValueError:索引51处的格式字符“B”（0x42）不受支持

注意：您可以搜索（ctrl+f）以在上面的字符串中查看%s。我试着突出它。但这是不可能的

---

如何替换上述字符串中的值。提前感谢。

您只需使用替换即可

newS = S.replace("%s", "100")

---

在这里，

%

的常用语法很难应用，因为在字符串中有许多“%x”python没有按字面意思理解（它认为它们是其他替换的占位符，但在CAE中只有转义的HTML字符）

您需要避免使用

%s

进行替换，并将

{}

与Python的

format（）

函数一起使用，如下所示：

text = "191042709832779540946_1513246254239&source=%7B%22query%22%3A%7B%22match_all%22%3A%7B%7D%7D%2C%22from%22%3A{}%2C%22size%22%3A20000%2C%22facets%22%3A%7B%22_type%22%3A%7B%22terms%22%3A%7B%22field%22%3A%22_type%22%2C%22size%22%3A102%2C%22order%22%3A%22reverse_term%22%7D%7D%2C%22index.classification.exact%22%3A%7B%22terms%22%3A%7B%22field%22%3A%22index.classification.exact%22%2C%22size%22%3A110%2C%22order%22%3A%22count%22%7D%7D%2C%22index.has_seal.exact%22%3A%7B%22terms%22%3A%7B%22field%22%3A%22index.has_seal.exact%22%2C%22size%22%3A110%2C%22order%22%3A%22count%22%7D%7D%2C%22index.license.exact%22%3A%7B%22terms%22%3A%7B%22field%22%3A%22index.license.exact%22%2C%22size%22%3A110%2C%22order%22%3A%22count%22%7D%7D%2C%22index.publisher.exact%22%3A%7B%22terms%22%3A%7B%22field%22%3A%22index.publisher.exact%22%2C%22size%22%3A110%2C%22order%22%3A%22count%22%7D%7D%2C%22index.language.exact%22%3A%7B%22terms%22%3A%7B%22field%22%3A%22index.language.exact%22%2C%22size%22%3A110%2C%22order%22%3A%22count%22%7D%7D%7D%7D&_=1513246254241"
replace = 100

print text.format(replace)

这将给你：

191042709832779540946_1513246254239&source=%7B%22query%22%3A%7B%22match_all%22%3A%7B%7D%7D%2C%22from%22%3A100%2C%22size%22%3A20000%2C%22facets%22%3A%7B%22_type%22%3A%7B%22terms%22%3A%7B%22field%22%3A%22_type%22%2C%22size%22%3A102%2C%22order%22%3A%22reverse_term%22%7D%7D%2C%22index.classification.exact%22%3A%7B%22terms%22%3A%7B%22field%22%3A%22index.classification.exact%22%2C%22size%22%3A110%2C%22order%22%3A%22count%22%7D%7D%2C%22index.has_seal.exact%22%3A%7B%22terms%22%3A%7B%22field%22%3A%22index.has_seal.exact%22%2C%22size%22%3A110%2C%22order%22%3A%22count%22%7D%7D%2C%22index.license.exact%22%3A%7B%22terms%22%3A%7B%22field%22%3A%22index.license.exact%22%2C%22size%22%3A110%2C%22order%22%3A%22count%22%7D%7D%2C%22index.publisher.exact%22%3A%7B%22terms%22%3A%7B%22field%22%3A%22index.publisher.exact%22%2C%22size%22%3A110%2C%22order%22%3A%22count%22%7D%7D%2C%22index.language.exact%22%3A%7B%22terms%22%3A%7B%22field%22%3A%22index.language.exact%22%2C%22size%22%3A110%2C%22order%22%3A%22count%22%7D%7D%7D%7D&_=1513246254241

---

这是必需的，因为您的

文本

已经有其他

%

字符，并且这将与

%s

替换不兼容。通过使用此方法，

replace

如果需要，也可以是字符串。

在某个地方替换整数，在哪里替换？你能更好地解释一下吗？向我们展示代码。作为旁注，

replace

可以是任何东西，因此OP可以直接使用数字，而不必首先将其转换为字符串（带有

“XXX”的示例）

在这方面可能会令人困惑）。