在Python中如何将字符串截断为75个字符?
在JavaScript中是这样做的:
var data="saddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddsaddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddsadddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd"
var info = (data.length > 75) ? data.substring[0,75] + '..' : data;
当前回答
刚刚收到的消息:
n = 8
s = '123'
print s[:n-3] + (s[n-3:], '...')[len(s) > n]
s = '12345678'
print s[:n-3] + (s[n-3:], '...')[len(s) > n]
s = '123456789'
print s[:n-3] + (s[n-3:], '...')[len(s) > n]
s = '123456789012345'
print s[:n-3] + (s[n-3:], '...')[len(s) > n]
123
12345678
12345...
12345...
其他回答
info = (data[:75] + '..') if len(data) > 75 else data
limit = 75
info = data[:limit] + '..' * (len(data) > limit)
简单而简短的helper函数:
def truncate_string(value, max_length=255, suffix='...'):
string_value = str(value)
string_truncated = string_value[:min(len(string_value), (max_length - len(suffix)))]
suffix = (suffix if len(string_value) > max_length else '')
return string_truncated+suffix
使用例子:
# Example 1 (default):
long_string = ""
for number in range(1, 1000):
long_string += str(number) + ','
result = truncate_string(long_string)
print(result)
# Example 2 (custom length):
short_string = 'Hello world'
result = truncate_string(short_string, 8)
print(result) # > Hello...
# Example 3 (not truncated):
short_string = 'Hello world'
result = truncate_string(short_string)
print(result) # > Hello world
info = data[:75] + ('..' if len(data) > 75 else '')
info = data[:min(len(data), 75)
