在Python中,判断一个字符串是否包含另一个指定的字符串,可以使用以下几种方法:
1. 使用 `in` 运算符:
```python
str1 = "Hi there and welcome. ... This is a special hidden file with a SECRET secret. ... I don't want to tell you The Secret, ... but I do want to secretly tell you that I have one.secret"
result = "secret" in str1
print(result) 输出:True
2. 使用 `not in` 运算符:```pythonresult = "secret" not in str1
print(result) 输出:False
3. 使用 `find()` 方法:
```python
str1 = " ABCDEF123descsf"
str2 = " CD"
result = str2 in str1
print(result) 输出:True
4. 使用 `rfind()` 方法:```pythonstr1 = " ABCDEFGHIJKLMNOPQRSTUVWXYZA"
result = str1.rfind(" A")
print(result) 输出:26
5. 使用 `index()` 方法:
```python
str1 = " ABCDEFGHIJKLMNOPQRSTUVWXYZA"
result = str1.index(" A")
print(result) 输出:0
6. 使用 `endswith()` 方法:```pythonstr1 = "Hi there and welcome. ... This is a special hidden file with a SECRET secret. ... I don't want to tell you The Secret, ... but I do want to secretly tell you that I have one.secret"
result = str1.endswith("secret")
print(result) 输出:True
7. 使用 `startswith()` 方法:
```python
str1 = "翔宇亭IT乐园的文章贵在专业"
result = str1.startswith("翔宇亭")
print(result) 输出:True
以上方法可以帮助你判断一个字符串是否包含另一个指定的字符串。请选择适合你需求的方法进行使用

