Python程序从整数列表中打印重复项？
在这里，我们尝试从数字列表中打印所有重复的数字。因此，我们正在尝试打印列表中出现多次（而不是唯一）的所有数字。
例子
Input: given_list = [ 3, 6, 9, 12, 3, 30, 15, 9, 45, 36, 12] Output: desired_output = [3, 9, 12] Input: given_list = [-27, 4, 29, -27, -2 , -99, 123, 499, -99] Output: desired_output = [-27, -99]
以下是从给定列表中查找重复元素的代码-
lst = [ 3, 6, 9, 12, 3, 30, 15, 9, 45, 36, 12, 12]
dupItems = []
uniqItems = {}
for x in lst:
if x not in uniqItems:
uniqItems[x] = 1
else:
if uniqItems[x] == 1:
dupItems.append(x)
uniqItems[x] += 1
print(dupItems)输出结果
[3, 9, 12]
上面的程序不仅适用于整数列表，还适用于其他整数-
Input: given_list = ['abc','def','raj','zack','abc','raj'] Output: output_returned= ['abc', 'raj']