304 Not Modified 是什么意思

304 Not Modified 是什么意思：https://blog.csdn.net/lanzhihui_10086/article/details/41311933?ops_request_misc=&request_id=&biz_id=102&utm_term=304%20not%20modified&utm_medium=distribute.pc_search_result.none-task-blog-2~all~sobaiduweb~default-0-41311933.pc_ask&spm=1018.2226.3001.4449

返回状态码304 Not Modified详解：https://blog.csdn.net/sunqiang4/article/details/119985947?ops_request_misc=%257B%2522request%255Fid%2522%253A%2522170538641316800225522703%2522%252C%2522scm%2522%253A%252220140713.130102334..%2522%257D&request_id=170538641316800225522703&biz_id=0&utm_medium=distribute.pc_search_result.none-task-blog-2~all~top_positive~default-1-119985947-null-null.142^v99^pc_search_result_base1&utm_term=304%20not%20modified&spm=1018.2226.3001.4449