python - 同一行输出多种类型

Question

我的目标是代码中的最后一行打印，但我真的做不到，因为我不断收到此错误 TypeError: unsupported operand type(s) for +: 'int ' 和 'str'。有没有一种快速的方法可以仅更改输出部分以使其成为可能？我仍然需要首先将它们转换为 int，但在这个输出的情况下，我需要在 ints 旁边加上“人口”和“面积”这两个词!

def _demo_fileopenbox():        
    msg  = "Pick A File!"
    msg2 = "Select a country to learn more about!"
    title = "Open files"
    default="*.py"
    f = fileopenbox(msg,title,default=default)
    writeln("You chose to open file: %s" % f)    
    countries = {}   

        with open(f,'r') as handle:

        reader = csv.reader(handle, delimiter = '\t')  

        for row in reader:

        countries[row[0]] = int(row[1].replace(',', '')), int(row[2].replace(',', ''))

        reply = choicebox(msg=msg2, choices= list(countries.keys()) )

        print(reply)

        print((countries[reply])[0])

        print((countries[reply])[1])

        #print(reply + "- \tArea: + " + (countries[reply])[0] + "\tPopulation: " + (countries[reply])[1] )

Answer 1

您必须使用 str() 将它们转换为字符串:

print(reply + "- \tArea: " + str(countries[reply][0]) + "\tPopulation: " + str(countries[reply][1]))

或者将它们作为参数传入并让 print 处理:

print(reply + "- \tArea:", countries[reply][0] + "\tPopulation:", countries[reply][1])

虽然在这一点上，我会使用字符串格式:

print('{}- \tArea: {}\tPopulation: {}'.format(reply, rountries[reply][0], rountries[reply][1]))