如题。用了phpqrcode弄了好久还是不行～
看看这篇博客：https://blog.csdn.net/ab15176142633/article/details/99650798?ops_request_misc=%257B%2522request%255Fid%2522%253A%2522162701124016780255287733%2522%252C%2522scm%2522%253A%252220140713.130102334.pc%255Fblog.%2522%257D&request_id=162701124016780255287733&biz_id=0&utm_medium=distribute.pc_search_result.none-task-blog-2~blog~first_rank_v2~rank_v29-1-99650798.pc_v2_rank_blog_default&utm_term=二维码&spm=1018.2226.3001.4450
行不通，要输出的
@7733:header 定义成图片类型
看看这篇博客：https://blog.csdn.net/ab15176142633/article/details/99650798?ops_request_misc=%257B%2522request%255Fid%2522%253A%2522162701124016780255287733%2522%252C%2522scm%2522%253A%252220140713.130102334.pc%255Fblog.%2522%257D&request_id=162701124016780255287733&biz_id=0&utm_medium=distribute.pc_search_result.none-task-blog-2~blog~first_rank_v2~rank_v29-1-99650798.pc_v2_rank_blog_default&utm_term=二维码&spm=1018.2226.3001.4450
行不通，要输出的
@7733:header 定义成图片类型