Python字符串转换为大写字母– str.upper()

We can convert a string to uppercase in Python using str.upper() function. In this short tutorial, we will learn how to convert python string to uppercase.

我们可以使用str.upper()函数将字符串转换为大写形式。 在这个简短的教程中,我们将学习如何将python字符串转换为大写。

Python字符串转换为大写 (Python String to Uppercase)

Let’s look at a simple example of converting a string to uppercase and print it.

让我们看一个将字符串转换为大写并打印的简单示例。

s = 'abcDEF%$'

print('Uppercase String =', s.upper())
print('Original String =', s)

Output:

输出:

Uppercase String = ABCDEF%$
Original String = abcDEF%$

Notice that when we call upper() on a string object, the original string remains unchanged. This function creates another string with uppercase characters and returns it.

注意,当我们在字符串对象上调用upper()时,原始字符串保持不变。 此函数使用大写字符创建另一个字符串并返回它。

带有用户输入的Python字符串upper() (Python String upper() with user input)

Let’s have a look at another example where we will get the user input and convert it to uppercase and print it.

让我们看另一个示例,在该示例中,我们将获取用户输入并将其转换为大写并打印。

s = input('Please Provide Input String\n')

print('Input String in Uppercase =', s.upper())

print('Original String =', s)

Output:

输出:

Please Provide Input String
JournalDev is Awesome!!
Input String in Uppercase = JOURNALDEV IS AWESOME!!
Original String = JournalDev is Awesome!!
GitHub Repository. GitHub存储库中检出完整的python脚本和更多Python示例。

Reference: API Doc

参考: API文档

翻译自: https://www.journaldev.com/23427/python-string-to-uppercase-str-upper

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