Python 将字符串拆分为包含整数、字符串和小数的列表

Question

Im trying to split

dimensions = "M 0 0 C 65 1 130 1 194.6875 0 C 195 17 195 33 194.6875 50 C 130 49 65 49 0 50 C 0 33 0 17 0 0 z"

into list form where if I wanted to get 194.6875 I could do

print(dimensions[8])

Im having trouble converting it to a list since there are multiple types.

Answer 1

dimensions = "M 0 0 C 65 1 130 1 194.6875 0 C 195 17 195 33 194.6875 50 C 130 49 65 49 0 50 C 0 33 0 17 0 0 z"
dimensions = dimensions.split(" ")
print(float(dimensions[8]))

Answer 2

You can use the.split() method on a string and pass in the character you want to split on, ie:

dimensions = "M 0 0 C 65 1 130 1 194.6875 0 C 195 17 195 33 194.6875 50 C 130 49 65 49 0 50 C 0 33 0 17 0 0 z"
listDimensions = dimensions.split(' ')
x = float(listDimensions[8])
print(x)

After that it is a case of changing the data type of the item you want with something like str() , int() or float()

Answer 3

You could split on space and convert to float the values that are not alphabetic strings

dimensions = "M 0 0 C 65 1 130 1 194.6875 0 C 195 17 195 33 194.6875 50 C 130 49 65 49 0 50 C 0 33 0 17 0 0 z"
values = [val if val.isalpha() else float(val) for val in dimensions.split(" ")]

print(values) # ['M', 0.0, 0.0, 'C', 65.0, 1.0, 130.0, 1.0, 194.6875, 0.0, 'C', 195.0, 17.0, 195.0, 33.0, 194.6875, 50.0, 'C', 130.0, 49.0, 65.0, 49.0, 0.0, 50.0, 'C', 0.0, 33.0, 0.0, 17.0, 0.0, 0.0, 'z']
print(values[8], type(values[8])) # 194.6875 <class 'float'>