格式化输出

思路一:通过字符串的连接输出

a=input()
print("I am " + a + " and I am studying Python in Nowcoder!")

思路二:利用format格式化函数填充

name=input()
print('I am {} and I am studying Python in Nowcoder!'.format(name))

同时还有format的几个变形使用:

#利用序号对应

# print('I am {0} and I am studying Python in Nowcoder!'.format(name))

#利用参数指代
# print('I am {A} and I am studying Python in Nowcoder!'.format(A=name))

思路三:字符串格式化 %s  占位符

name = input()
print("I am %s and I am studying Python in Nowcoder!"%name)

%s 的用法扩展

print "My name is %s and weight is %d kg!" % ('Zara', 21) 

思路四: f字符串

str = input()
print(f'I am {str} and I am studying Python in Nowcoder!')

Python中的f字符串的用法:要在字符串中插入变量的值,可在前引号前加上字母f,再将要插入的变量放在花括号内

first_name="ada"
 
last_name="lovelace"
 
full_name=f"{first_name}{last_name}"
 
print(f"Hello,{full_name.title()}!")

打印结果:Hello,Ada Lovelace!

#  title()函数是返回"标题化"的字符串,就是说所有单词都是以大写开始,其余字母均为小写

# f字符串在python3.6这么用,之前版本用法还有差别。