下面是我切掉“M”的方法:

s = 'EXAMPLE'
s1 = s[:s.index('M')] + s[s.index('M')+1:]

def kill_char(string, n): # n = position of which character you want to remove
    begin = string[:n]    # from beginning to n (n not included)
    end = string[n+1:]    # n+1 through end of string
    return begin + end
print kill_char("EXAMPLE", 3)  # "M" removed

我在这里某处见过。

使用translate()方法:

>>> s = 'EXAMPLE'
>>> s.translate(None, 'M')
'EXAPLE'

字符串是不可变的。但是你可以把它们转换成一个可变的列表，然后在你改变它之后再把它转换回字符串。

s = "this is a string"

l = list(s)  # convert to list

l[1] = ""    # "delete" letter h (the item actually still exists but is empty)
l[1:2] = []  # really delete letter h (the item is actually removed from the list)
del(l[1])    # another way to delete it

p = l.index("a")  # find position of the letter "a"
del(l[p])         # delete it

s = "".join(l)  # convert back to string

您还可以创建一个新字符串，就像其他人演示的那样，从现有字符串中取出所需字符以外的所有内容。

取代:取代特定的位置:

s = s[:pos] + s[(pos+1):]

替换一个特定的字符:

s = s.replace('M','')

Python 3.9+中引入了两个新的字符串删除方法

#str.removeprefix("prefix_to_be_removed")
#str.removesuffix("suffix_to_be_removed")

s='EXAMPLE'

在这个例子中，M的位置是3

s = s[:3] + s[3:].removeprefix('M')

OR

s = s[:4].removesuffix('M') + s[4:]

#output'EXAPLE'