在Python 2.7中格式化输出

我在打印输出时遇到一些问题

我的代码：

def main():
    total = 0
    capital = ["Bern", "London", "Washington D.C"]
    country = ["Switzerland", "England", "America"]
    population = [0.126,8.539,0.659]
    print "   Capital\tCountry\t\tPopulation"
    print "-------------\t-------------\t-------------"
    for i in range(len(capital)):
        print "%s\t%s\t%s"% (capital[i-1], country[i-1], population[i-1])
main()

输出：

   Capital      Country         Population
-------------   -------------   -------------
Washington D.C  America 0.659
Bern    Switzerland     0.126
London  England 8.539

我试图使输出如下所示：

   Capital         Country        Population
-------------   -------------   -------------
Washington D.C     America          0.659
Bern             Switzerland        0.126
London             England          8.539

我已经尝试过通过添加和减少“\t”来调整输出，但无法调整它

任何帮助都将不胜感激。

---

谢谢

在打印调用中为%操作员指定最小字段宽度。例如：

print "%24s" % ("Bern")

---

在打印调用中为%运算符指定最小字段宽度。例如：

print "%24s" % ("Bern")

我建议您使用，如下所示，因为它具有更好的文本格式和字符串调整，以及各种可以使输出打印得更漂亮的东西：

>>> def main():
    capital = ["Bern", "London", "Washington D.C"]
    country = ["Switzerland", "England", "America"]
    population = [0.126,8.539,0.659]
    print '{:^15}{:^15}{:^15}'.format(*['Capital','Country','Population'])
    print '{:^15}{:^15}{:^15}'.format(*['-'*12]*3)
    for cap,cout,pop in zip(capital,country,population):
        print '{:<15}{:^15}{:^15}'.format(cap,cout,pop)


>>> main()
    Capital        Country      Population   
 ------------   ------------   ------------  
Bern             Switzerland       0.126     
London             England         8.539     
Washington D.C     America         0.659 

我建议您使用，如下所示，因为它具有更好的文本格式和字符串调整，以及各种可以使输出打印得更漂亮的东西：

>>> def main():
    capital = ["Bern", "London", "Washington D.C"]
    country = ["Switzerland", "England", "America"]
    population = [0.126,8.539,0.659]
    print '{:^15}{:^15}{:^15}'.format(*['Capital','Country','Population'])
    print '{:^15}{:^15}{:^15}'.format(*['-'*12]*3)
    for cap,cout,pop in zip(capital,country,population):
        print '{:<15}{:^15}{:^15}'.format(cap,cout,pop)


>>> main()
    Capital        Country      Population   
 ------------   ------------   ------------  
Bern             Switzerland       0.126     
London             England         8.539     
Washington D.C     America         0.659