リストと組み込み関数(2)

スライド

alist = [23, 12, 36, 53, 19]
print(alist[:3])
print(alist[1:4])

# 출력
[23, 12, 36]
[12, 36, 53]

len()、リスト内の値を巡回

alist = [23, 12, 36, 53, 19]
print(len(alist))

for i in range(len(alist)): # len() 함수를 통해 순회하기
    print(alist[i], end = ' ')
    
for x in alist: # 다른 함수 없이 직접 순회하기
    print(x, end = ' ')

# 출력
5
23 12 36 53 19 
23 12 36 53 19

enumerate()

alist = [23, 12, 36, 53, 19]

for x in enumerate(alist):
    print(x, end = ' ')

for x in enumerate(alist):
    print(x[0], x[1], end = ' / ')

for index, value in enumerate(alist):
    print(index, value, end=' / ')

# 출력
(0, 23) (1, 12) (2, 36) (3, 53) (4, 19) 
0 23 / 1 12 / 2 36 / 3 53 / 4 19 / 
0 23 / 1 12 / 2 36 / 3 53 / 4 19 /

all(), any()

alist = [23, 12, 36, 53, 19]

if all(x<60 for x in alist):
    print("YES")
else:
    print("NO")

if any(x<15 for x in alist):
    print("YES")
else:
    print("NO")

# 출력
YES
YES