字符串方法
len():获取字符串长度
split():可以把字符串通过分隔符,分成很多段
![](https://img.haomeiwen.com/i6739699/2b4370c89e55ecc0.png)
join:可以把一个列表拼接成字符串
![](https://img.haomeiwen.com/i6739699/ea3784784ada8aa2.png)
find:从字符串中找出某个字符串,返回该字符串找到的索引
![](https://img.haomeiwen.com/i6739699/b4c2609bd7c32c00.png)
注意:如果找不到,结果为-1
![](https://img.haomeiwen.com/i6739699/a68ba5de7947d5e7.png)
index:功能和find一样
![](https://img.haomeiwen.com/i6739699/ae2ae5a11b2b5d28.png)
find与index有什么区别呢?
find找不到不报错,index找不到会报错
![](https://img.haomeiwen.com/i6739699/49ff0f9b971df730.png)
replace:替换,替换某个子字符串
![](https://img.haomeiwen.com/i6739699/158870daa45b9f2f.png)
upper:转换成大写
lower:转换成小写
![](https://img.haomeiwen.com/i6739699/4f50c2da4bb78732.png)
字符串的格式化操作
给出一个模板,获取动态的字符串
f:表示格式化,py最新的用法
例子:
![](https://img.haomeiwen.com/i6739699/2aac97b079515e8e.png)
format用法:
![](https://img.haomeiwen.com/i6739699/0987b9f8e7cfe130.png)
自动化测试场景
-接口的url
-请求参数
http://httpbin.org:port/rechage?money=100&page=1
![](https://img.haomeiwen.com/i6739699/5442fc7ccf141c2a.png)
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