python里的set的discard和remove的区别_python中remove和discard的区别

python里的set的discard和remove的区别

# set 的discard 和 remove
set1 = {"apple", "banana", "cherry", "orange", "mango", "grapes"}
set1.discard("orange")
print('discard1: ', set1)  # discard1:  {'apple', 'cherry', 'banana', 'mango', 'grapes'}
set1.discard("peach")
print('discard2: ', set1)  # discard2:  {'apple', 'cherry', 'banana', 'mango', 'grapes'}
set1.remove("cherry")
print('remove1: ', set1)  # remove1:  {'apple', 'banana', 'mango', 'grapes'}
set1.remove("peach")
print('remove2: ', set1)  # Error

使用discard和remove都可以删除set当中的元素，区别就是remove的元素在set当中没有的话会报错，而discard不会。