Python for循环中使用index索引
# 使用enumerate()实现ints = [8, 23, 45, 12, 78]for idx, val in enumerate(ints):print(idx, val)ints = [8, 23, 45, 12, 78]for index, item in enumerate(ints, start=0):# 默认是从 0 开始print(index, item)ints = [8,
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# 使用enumerate()实现
ints = [8, 23, 45, 12, 78]
for idx, val in enumerate(ints):
print(idx, val)
ints = [8, 23, 45, 12, 78]
for index, item in enumerate(ints, start=0): # 默认是从 0 开始
print(index, item)
ints = [8, 23, 45, 12, 78]
for index, item in enumerate(ints, start=1): # 索引修成从 1 开始
print(index, item)
# 使用range()实现
ints = [8, 23, 45, 12, 78]
for i in range(len(ints)):
print(i, ints[i])
# 仅使用for和in实现
ints = [8, 23, 45, 12, 78]
index = 0
for value in ints:
index +=1
print(index, value)
ints = [8, 23, 45, 12, 78]
index = 0
for value in (ints):
index +=1
print index, value
if index >= len(ints)-1: # 重置index索引
index = 0
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