Python3下的【并行迭代】与【按索引迭代】

时间 2019-11-05

标签 python3 python 并行迭代按索引迭代栏目 Python 繁體版

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在使用python3时，有【并行迭代】与【按索引迭代】，并行迭代相对来讲好理解，如今介绍下【按索引迭代】。python

废话很少，直接上实例
ide

# Demo：并行迭代 zip函数函数

names = ["anne","beth","george","damon","bob"]测试

ages = [12,45,32,102,101,103]spa

# names 与 ages 列表元素能够不等同，按数量少的进行对应索引

for name,age in zip(names,ages):ip

print(name,"is",age,"years old!")string

按索引迭代案例it

按索引迭代方式一table

strings = ["Alice","Bob","Nick"]

# strings[1] = "leo" #测试给列表添加元素后，的效果

# print(strings)

index = 0

for string in strings:

if "ob" in string:

strings[index] = "Tom" # 将含有“ob”的元素，替换为Tom

index += 1

print(strings)

按索引迭代方式二

strings = ["Alice","Bob","Nick"]

index = 0

for index,string in enumerate(strings):

if "ob" in string:

strings[index] = "Tom"

print(strings)