1.举例说明：(引号)
n1 = "alex"
n2 = ‘sb‘
n3 = ‘‘‘en‘‘‘
n4 = """shiya"""
2.字符串的运算：
加法：
>>> n1 = "alex" >>> n2 = "sb" >>> n1+n2 ‘alexsb‘
乘法：
>>> n1 = "mao" >>> n1*10 ‘maomaomaomaomaomaomaomaomaomao‘
python基础--字符串
原文：https://www.cnblogs.com/kedaxiaohei/p/9965964.html
