Python-格式化给定列表元素的方法
列表是有序且可更改的集合。在Python中，列表用方括号括起来。您通过引用索引号访问列表项。负索引表示从末尾开始，-1表示最后一项。您可以通过指定范围的起点和终点来指定索引范围。指定范围时，返回值将是包含指定项目的新列表。
示例
# List initialization
Input = [100.7689454, 17.232999, 60.98867, 300.83748789]
# Using list comprehension
Output = ["%.2f" % elem for elem in Input]
# Printing output
print(Output)
# List initialization
Input = [100.7689454, 17.232999, 60.98867, 300.83748789]
# Using map
Output = map(lambda n: "%.2f" % n, Input)
# Converting to list
Output = list(Output)
# Print output
print(Output)
# List initialization
Input = [100.7689454, 17.232999, 60.98867, 300.83748789]
# Using forrmat
Output = ['{:.2f}'.format(elem) for elem in Input]
# Print output
print(Output)
# List initialization
Input = [100.7689454, 17.232999, 60.98867, 300.83748789]
# Using forrmat
Output = ['{:.2f}'.format(elem) for elem in Input]
# Print output
print(Output)输出结果
['100.77', '17.23', '60.99', '300.84'] ['100.77', '17.23', '60.99', '300.84'] ['100.77', '17.23', '60.99', '300.84'] ['100.77', '17.23', '60.99', '300.84']
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