1、加上placeholder，可以为空
2、放在label标签中
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【IEDA】Typo: In woed 'xxx' more...(Ctrl + F1) 拼写检查
关于html name 和id，Form input without an associated label or title attribute
matlab7“This application has requested the Runtime to terminate it in an unusual way Please contact the applicatin's support team for more...”
Idea 关于SpringBoot的@AutoWired 注入问题--无法自动装配Could not autowire. No beans of 'UserMapper' type found. more...
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break MISSING_BLOCK_LABEL_160; 看源代码出现的，源代码是反编译的
The linked library 'libPods-xxx.a' is missing one or more architectures required by this target: armv7.
Android:layout布局页面无法显示，提示one or more layouts are missing the layout_width or layout_height attributes
No address associated with hostname