【字符串拼接之两种方法】

# 字符串拼接
# coding：utf-8

# 1.采用‘+’号的形式
# a = 'hello'
# b = 'world'

# c = a +' ' + b
# print(c)

# 2.采用格式化的形式
# a = "__"
# b = 'name'

# # "__name__"
# # c = a + b + a 
# c = "%s%s%s" % (a,b,a)
# print(c)