What is the method for comparing strings in Python?

In Python, comparison operators like <, >, <=, >=, ==, and != can be used to compare the sizes of strings. These operators will compare the strings in dictionary order based on the ASCII values to determine their size relationship.

Here are some examples:

str1 = "abc"
str2 = "def"

# 使用比较运算符进行字符串比较
print(str1 < str2)  # 输出 True，因为"abc"在字典中排在"def"之前
print(str1 > str2)  # 输出 False，因为"def"在字典中排在"abc"之后
print(str1 == str2)  # 输出 False，因为"abc"和"def"不相等
print(str1 != str2)  # 输出 True，因为"abc"和"def"不相等

When comparing strings in Python, the comparison is done character by character based on the ASCII values until a different character is found or the comparison is complete. Therefore, the length of the string does not affect the comparison result.