a=int(input(“a=")) 网络 b=int(input(“b=“)) print (“before exchange:“,a,b) if a>b: b=b，a print (“after exchange:",a,b)

a = int(input("a="))
b = int(input("b="))
print("before exchange:", a, b)
if a > b:
b, a = a, b
print("after exchange:", a, b)

相关问题

n = int(input()) count = 0 for i in range(1, n+1): count += str(i).count('2') print(count)

There are a few issues with this code:

1. The second line is missing a colon after the variable declaration.
2. The loop should start at 1 and end at n+1 to include n.
3. The variable count should be initialized to 0 before the loop.
4. The indentation for the third line should be inside the loop.
5. The print statement should be outside the loop and should print the total count, not the count for each iteration.

Here's the corrected code:

n = int(input())
count = 0
for i in range(1, n+1):
count += str(i).count('2')
print(count)

number_string=str(input()) number=int(number_string) n=number.split(',') print(max(n))

There are a few issues with the code provided. Here is a corrected version:

number_string = input() # no need to use str() since input() already returns a string
n = number_string.split(',') # split the string using the comma as separator
n = [int(x) for x in n] # convert each element to an integer
print(max(n)) # print the maximum value

This code first reads a string from the user input, splits it into a list of strings using the comma as separator, converts each string to an integer, and then finds the maximum value in the list using the `max()` function.

Note that the `split()` method returns a list of strings, so we need to convert each string to an integer before we can find the maximum value. This is done using a list comprehension, which creates a new list by applying a function (in this case, `int()`) to each element of an existing list.