有时候,我们需要在字符串中加入相应的变量,以下提供了几种字符串加入变量的方法:
1、+ 连字符
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name = 'zhangsan' print('my name is '+name) #结果为 my name is zhangsan |
2、% 字符
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name = 'zhangsan' age = 25 price = 4500.225 print('my name is %s'%(name)) print('i am %d'%(age)+' years old') print('my price is %f'%(price)) #保留指定位数小数(四舍五入) print('my price is %.2f'%(price)) |
结果为
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my name is zhangsan i am 25 years old my price is 4500.225000 my price is 4500.23 |
3、format()函数
对于变量较多的情况,加入加'+'或者'%'相对比较麻烦,这种情况下可以使用format函数
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name = 'zhangsan' age = 25 price = 4500.225 info = 'my name is {my_name},i am {my_age} years old,my price is {my_price}'\ .format(my_name=name,my_age=age,my_price=price) print(info) |
结果为:
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my name is zhangsan,i am 25 years old,my price is 4500.225 |
以上这篇Python 在字符串中加入变量的实例讲解就是小编分享给大家的全部内容了,希望能给大家一个参考,也希望大家多多支持服务器之家。
原文链接:https://blog.csdn.net/qq_26033611/article/details/79224565