python 中字符串中含变量方法

1. 简单粗鲁的字符串拼接

1 name = "abc"
2 age = 25
3 info = "the name is "+name +"\nthe age is " + str(age)
4 print(info)

运行结果：

2.%

name = "abc"
age = 25
info = "the name is %s \nthe age is %s"%(name ,age)
print(info)

运行结果：

3.formate

name = "abc"
age = 25
info_1 = "the name is {name_} \nthe age is {age_}".format(name_=name ,age_= age)
print(info_1)
info_2 = "the name is {0} \nthe age is {1}".format(name ,age)
print(info_2)
info_3 = "the name is {} \nthe age is {}".format(name ,age)
print(info_3)

运行结果：