linux 软链接删除
1. 创建软链接 具体用法是：ln s pwd 查看当前路径ll 查看所有文件 首先我们先来创建两个文件mkdir testtouch test/test.txttouch test/val.txt 下面我们来创建test目录 的软链接ln s test test_chk_lnll ls l查看 修改软链接ln
TypeError: Cannot read property 'prototype' of undefined
最近在修改一个微信小程序的项目，调试模式下没问题，但打包后运行就这个错TypeError: Cannot read property 'prototype' of undefined网上有说是因为引入js顺序问题，但我这个不是，经过一翻折腾，最近发现是因为微信开发者上的一项选项钩选了把该选项"将js编译成ES5" 去提后就可以了对于该问题 如
Unable to negotiate with 106.52.160.162 port 22: no matching host key type found. Their offer: ssh-rsa fatal: Could not read from remote repository.
Unable to negotiate with 106.52.160.162 port 22: no matching host key type found. Their offer: ssh-rsafatal: Could not read from remote repository.
WebSocket connection to ws://xxxxx:8501/ failed: Error in connection establishment: net::ERR_CONNECTION_REFUSED
WebSocket connection to ws://xxxxx:8501/ failed: Error in connection establishment: net::ERR_CONNECTION_REFUSED
[Vue warn]: Error in render: "TypeError: ctx.injections.tableRoot.$scopedSlots[ctx.props.column.slot] is not a function
[Vue warn]: Error in render: "TypeError: ctx.injections.tableRoot.$scopedSlots[ctx.props.column.slot] is not a function
strpos(): Non-string needles will be interpreted as strings in the future. Use an explicit chr() call to preserve the current behavior
strpos(): Non-string needles will be interpreted as strings in the future. Use an explicit chr() call to preserve the current behavior
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