python选择排序

a=str(input("请输入要排序的数:"))
b=a.split(',')
b=[int(i) for (i) in b]
for right in range(0,len(b)-1):
    for i in range(right+1,len(b)):
        if(b[right]>b[i]):
            temp = b[right]
            b[right] = b[i]
            b[i] = temp
print(b)