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[Python] listを逆順にソート かつ 0除去する

Last updated at Posted at 2022-10-30

目的

数値の配列listから下記を行う。

  • 0除去
  • 逆順にソート

コード

testListExcluded = list()
testList = [0,1,0,2,0,0,3]
print(testList)

# 逆順にする
# reverse()が返すのはNoneなので注意。
testList.reverse()
print(testList)

# 0除去する
for value in testList:
    if value != 0:
        testListExcluded.append(value)
        
print(testListExcluded)

出力結果

[0, 1, 0, 2, 0, 0, 3]
[3, 0, 0, 2, 0, 1, 0]
[3, 2, 1]

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