如何根據列表的范圍附加來自不同列表的兩個字符串

Question

我想附加來自不同列表的兩個字符串。

list1 = ['dir1/dir2/c/', 'dir1/dir2/java/', 'dir1/dir2/python/']
list2 = [['c1', 'c2', 'c3'], ['java1', 'java2', 'java3'],['python1','python2']]

對於list1中的每個項目，我都需要加入list2中的項目。

輸出：

dir1/dir2/c/c1
dir1/dir2/c/c2
dir1/dir2/c/c3

dir1/dir2/java/java1
dir1/dir2/java/java2
dir1/dir2/java/java3

dir1/dir2/python/python1
dir1/dir2/python/python2

碼：

for i in list1:
    for j in list2:
        for k in j:
            print(i+'/'+k)

Answer 1

您可以zip兩個列表：

for d, l in zip(list1, list2):
    for s in l:
        print(d + s)

輸出：

dir1/dir2/c/c1
dir1/dir2/c/c2
dir1/dir2/c/c3
dir1/dir2/java/java1
dir1/dir2/java/java2
dir1/dir2/java/java3
dir1/dir2/python/python1
dir1/dir2/python/python2

Answer 2

使用enumerate獲取您正在處理的列表的索引。 這樣，您可以選擇在內部for循環中迭代哪個內部列表。

list1 = ['dir1/dir2/c/', 'dir1/dir2/java/','dir1/dir2/python/']
list2 = [['c1','c2','c3'],['java1','java2','java3'],['python1','python2']]

for i, li in enumerate(list1):
    for j in list2[i]:
        print(li+j)

輸出：

dir1/dir2/c/c1
dir1/dir2/c/c2
dir1/dir2/c/c3
dir1/dir2/java/java1
dir1/dir2/java/java2
dir1/dir2/java/java3
dir1/dir2/python/python1
dir1/dir2/python/python2