如果你想从左边和右边修剪指定数量的空格，你可以这样做:

def remove_outer_spaces(text, num_of_leading, num_of_trailing):
    text = list(text)
    for i in range(num_of_leading):
        if text[i] == " ":
            text[i] = ""
        else:
            break

    for i in range(1, num_of_trailing+1):
        if text[-i] == " ":
            text[-i] = ""
        else:
            break
    return ''.join(text)

txt1 = "   MY name is     "
print(remove_outer_spaces(txt1, 1, 1))  # result is: "  MY name is    "
print(remove_outer_spaces(txt1, 2, 3))  # result is: " MY name is  "
print(remove_outer_spaces(txt1, 6, 8))  # result is: "MY name is"

正如上面的答案所指出的

my_string.strip()

将删除所有前导和后面的空白字符，如\n， \r， \t， \f，空格。

为了获得更大的灵活性，请使用以下方法

只删除前导空白字符: 只移除尾随的空格字符: 删除特定的空白字符:my_string.strip('\n')或my_string.lstrip('\n\r')或my_string.rstrip('\n\t')等。

更多细节可以在文档中找到。

你需要strip():

myphrases = [" Hello ", " Hello", "Hello ", "Bob has a cat"]

for phrase in myphrases:
    print(phrase.strip())

这将删除myString中所有前导和尾部的空格:

myString.strip()

一种方法是使用.strip()方法(删除所有周围的空白)

str = "  Hello World  "
str = str.strip()
**result: str = "Hello World"**

请注意，.strip()返回字符串的副本，并且不会更改下划线对象(因为字符串是不可变的)。

如果您希望删除所有空白(不仅仅是修剪边缘):

str = ' abcd efgh ijk  '
str = str.replace(' ', '')
**result: str = 'abcdefghijk'

如果你想从左边和右边修剪指定数量的空格，你可以这样做:

def remove_outer_spaces(text, num_of_leading, num_of_trailing):
    text = list(text)
    for i in range(num_of_leading):
        if text[i] == " ":
            text[i] = ""
        else:
            break

    for i in range(1, num_of_trailing+1):
        if text[-i] == " ":
            text[-i] = ""
        else:
            break
    return ''.join(text)

txt1 = "   MY name is     "
print(remove_outer_spaces(txt1, 1, 1))  # result is: "  MY name is    "
print(remove_outer_spaces(txt1, 2, 3))  # result is: " MY name is  "
print(remove_outer_spaces(txt1, 6, 8))  # result is: "MY name is"