字符串中含有特殊字符java中需要转义符号，scala可以在三个引号中直接输特殊字符，不需要转义符 https://blog.csdn.net/qq_20245089/article/details/84791390?ops_request_misc=%257B%2522request%255Fid%2522%253A%2522165277370016780357212577%2522%252C%2522scm%2522%253A%252220140713.130102334..%2522%257D&request_id=165277370016780357212577&biz_id=0&utm_medium=distribute.pc_search_result.none-task-blog-2~all~sobaiduend~default-1-84791390-null-null.142^v10^pc_search_result_control_group,157^v4^control&utm_term=scala+%E4%B8%89%E4%B8%AA%E5%BC%95%E5%8F%B7&spm=1018.2226.3001.4187
