如何在像 hello world 这样的新行中打印 86？

Question

Var1 = "54"
Var2 = "32"
Print(2 * "hello world\n")
Print(2 * str(int(var1)+int(var2)))

Answer 1

在乘以 2 之前将换行符连接到字符串。

print(2 * (str(int(var1) + int(var2)) + "\n"))

Answer 2

first to sum 2 integers you should not put them between double quotes or single quotes like you did, in that case it will sum up as strings and results in '54' + '32' = 5432 and for the new line, print already do it for you.

x = 54
y = 32

print(x+y)

ouput

86

Answer 3

sorry I did not understand what you want the first time, now I got it, try this:

x = 54
y = 32
z = x + y
print(str(z)+'\n'+str(z))

output

86
86

upvote and checkmark :-)

Answer 4

python's print command will always print on a new line when it is invoked, but since you are using the "2 * value" you are not actually invoking the print twice, youre telling print to print 2 versions of the value.

With that, you can add a new line character after your 86 to make it show on 2 lines as shown below.

Also it's preferential, but it makes things a lot easier to debug when you separate large actions out. Casting strings to ints, adding the ints together, and printing all in one line is a lot to digest when debugging and makes it more difficult to understand what exactly went wrong. It adds a few lines but it makes everything much more readable. At the very least, you could move the action to it's own function, especially if you will be calling it many times.

var1="54"
var2="32"

print(2 * "hello world\n")

int1 = int(var1)
int2 = int(var2)
added = int1 + int2
var_str = "%s\n"%(added)
print(2 * var_str)