建站
咨詢
售后
建站咨詢
新聞中心
創(chuàng)新互聯(lián)python教程：
專注于為中小企業(yè)提供成都網(wǎng)站建設(shè)、網(wǎng)站建設(shè)服務(wù),電腦端+手機端+微信端的三站合一,更高效的管理,為中小企業(yè)平輿免費做網(wǎng)站提供優(yōu)質(zhì)的服務(wù)。我們立足成都，凝聚了一批互聯(lián)網(wǎng)行業(yè)人才，有力地推動了上千企業(yè)的穩(wěn)健成長，幫助中小企業(yè)通過網(wǎng)站建設(shè)實現(xiàn)規(guī)模擴充和轉(zhuǎn)變。
編寫一個 Python 程序，從給定的列表中刪除所有重復(fù)項。Python 集合不允許重復(fù)，所以我們可以將列表轉(zhuǎn)換為集合，然后將其轉(zhuǎn)換回列表將刪除列表重復(fù)。
# Remove Duplicates from List
dupList = [1, 2, 3, 2, 4, 8, 9, 1, 7, 6, 4, 5]
print("List Items = ", dupList)
uniqSet = set(dupList)
uniqList = list(uniqSet)
print("List Items after removing Duplicates = ", uniqList)Python 使用設(shè)置輸出 移除列表中的重復(fù)項
List Items = [1, 2, 3, 2, 4, 8, 9, 1, 7, 6, 4, 5]
List Items after removing Duplicates = [1, 2, 3, 4, 5, 6, 7, 8, 9]從列表中刪除重復(fù)項目的 Python 程序
這個 Python 程序允許輸入列表大小和項目。for 循環(huán)將迭代雙工項。帶有 not in 運算符的 if 語句檢查該值是否不在優(yōu)衣庫列表中。如果為真，則將該值追加到優(yōu)衣庫列表中。
# Remove Duplicates from List
dupList = []
listNumber = int(input("Enter the Total List Items = "))
for i in range(1, listNumber + 1):
listValue = int(input("Enter the %d List Item = " %i))
dupList.append(listValue)
print("List Items = ", dupList)
uniqList = []
for val in dupList:
if val not in uniqList:
uniqList.append(val)
print("List Items after removing Duplicates = ", uniqList)在這個例子中，我們使用 Python 列表理解從列表中移除重復(fù)的項目。這段代碼與上面的例子相同，但是我們使用了列表理解的概念。
# Remove Duplicates from List
dupList = [1, 2, 5, 8, 1, 9, 11, 5, 22, 6, 2, 8, 14]
print("List Items = ", dupList)
uniqList = []
[uniqList.append(i) for i in dupList if i not in uniqList]
print("List Items after removing Duplicates = ", uniqList)List Items = [1, 2, 5, 8, 1, 9, 11, 5, 22, 6, 2, 8, 14]
List Items after removing Duplicates = [1, 2, 5, 8, 9, 11, 22, 6, 14]在本例中，我們從集合中導(dǎo)入了 OrderedDict，并使用 fromkeys 函數(shù)刪除重復(fù)項。別忘了把結(jié)果轉(zhuǎn)換成列表。
# Remove Duplicates from List
from collections import OrderedDict
dupList = [8, 1, 9, 2, 8, 4, 9, 11, 5, 22, 6, 4, 8]
print("List Items = ", dupList)
uniqList = OrderedDict.fromkeys(dupList)
print("List Items after removing Duplicates = ", list(uniqList))使用排序從集合輸出中刪除列表中的重復(fù)項
List Items = [8, 1, 9, 2, 8, 4, 9, 11, 5, 22, 6, 4, 8]
List Items after removing Duplicates = [8, 1, 9, 2, 4, 11, 5, 22, 6]numpy 和pands模塊都有去除重復(fù)的獨特功能，所以我們使用了相同的功能，并將結(jié)果轉(zhuǎn)換為列表。為了轉(zhuǎn)換結(jié)果，我們使用了 tolist()函數(shù)。
# Remove Duplicates from List
import numpy as np
import pandas as pd
dupList = [1, 2, 2, 4, 1, 5, 6, 8, 6, 8, 9, 7, 4]
print("List Items = ", dupList)
uniqList = np.unique(dupList).tolist()
print("List Items after removing Duplicates = ", uniqList)
uniqList2 = pd.unique(dupList).tolist()
print("List Items after removing Duplicates = ", uniqList2)使用 numpy 唯一功能輸出 刪除列表中的重復(fù)項
List Items = [1, 2, 2, 4, 1, 5, 6, 8, 6, 8, 9, 7, 4]
List Items after removing Duplicates = [1, 2, 4, 5, 6, 7, 8, 9]
List Items after removing Duplicates = [1, 2, 4, 5, 6, 8, 9, 7]使用枚舉從列表中刪除重復(fù)項的 Python 程序。
# Remove Duplicates from List
from collections import OrderedDict
dupList = [1, 2, 3, 2, 4, 1, 5, 6, 5, 8, 7, 9, 8]
print("List Items = ", dupList)
uniqList = [val for x, val in enumerate(dupList) if val not in dupList[:x]]
print("List Items after removing Duplicates = ", uniqList)使用枚舉輸出刪除列表中的重復(fù)項
List Items = [1, 2, 3, 2, 4, 1, 5, 6, 5, 8, 7, 9, 8]
List Items after removing Duplicates = [1, 2, 3, 4, 5, 6, 8, 7, 9]網(wǎng)頁名稱：Python程序：從列表中刪除重復(fù)項
標(biāo)題網(wǎng)址：http://www.5511xx.com/article/coocood.html
