一尘不染

Python:TypeError:无法连接“ str”和“ int”对象

python

我有这个将字符串添加到整数的python程序:

a = raw_input("Enter a: ")
b = raw_input("Enter b: ")
print "a + b as strings: " + a + b
a = int(a)
b = int(b)
c = a + b
str(c)
print "a + b as integers: " + c

我收到此错误:

Python: TypeError: cannot concatenate 'str' and 'int' objects

如何将字符串添加到整数?


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2020-02-21

共1个答案

一尘不染

有两种方法可以解决由最后一条print语句引起的问题。

你可以将str(c)调用的结果分配给c@jamylak正确显示的结果,然后连接所有字符串,或者可以使用以下内容替换最后一个字符串print:

print "a + b as integers: ", c  # note the comma here

在这种情况下

str(c)

不必要,可以删除。

样品运行的输出:

Enter a: 3
Enter b: 7
a + b as strings:  37
a + b as integers:  10

与:

a = raw_input("Enter a: ")
b = raw_input("Enter b: ")
print "a + b as strings: " + a + b  # + everywhere is ok since all are strings
a = int(a)
b = int(b)
c = a + b
print "a + b as integers: ", c
2020-02-21