python：正则表达式匹配字符串的数字范围

Python正则表达式：匹配字符串的数字范围

python
import re
string = "I have 3 apples and 5 oranges."
result = re.findall(r"\d", string)
print(result)
# Output: ['3', '5']

python
import re
string = "The temperature is 25 degrees Celsius."
result = re.findall(r"\d+", string)
print(result)
# Output: ['25']

python
import re
string = "Please enter a number between 1 and 100."
result = re.findall(r"\d{1,3}", string)
print(result)
# Output: ['1', '100']

python
import re
string = "The valid range is 1-10 or 20-30."
result = re.findall(r"\d{1,2}-\d{1,2}|\d{2}-\d{2}", string)
print(result)
# Output: ['1-10', '20-30']