python学习-List移除某个值remove和统计值次数count

import operator

list=[51,'CTO','Hello','World','test','one']
print('\n删除前：%s' % (list))
length=len(list)
print('\nlist个数：%s' % (length))

# 1、删除方法 - del - 指定下标删除
del list[length-1]
print('\n删除前：%s' % (list))

# 2、删除方法 - remove - 指定值删除
list.remove('test')
print('\n删除前：%s' % (list))

import sys 

target_str='test'
list=[51,'CTO','Hello','World','abc','one','test','test']

count=list.count(target_str)
print('\n%s值在列表中个数：%s' % (target_str,str(count)))

# 1、根据次数移除所有目标值
for i in range(count):
    list.remove('test')
print(list)