Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you may not be able to execute some actions.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
output_str="[%d]" % (max_blob.cx()) ,这一行代码中的第二个百分号,表示什么意思?
字符串格式化,把max_blob.cx()用括号包起来,比如
[112]
https://cn.bing.com/search?q=python3+字符串格式化&qs=n&form=QBLHCN&sp=-1&pq=python3+字符串&sc=0-11&sk=&cvid=2E7C662C2E6E4347A9C96A1D4D2A7DE9