提示错误“Value 50,70 contains non-numeric: ',70'”

非常抱歉，我的前一个回答中的命令可能存在一些问题。正确的命令应该是:

stress-ng --cpu 4 --cpu-method matrixprod --metrics-brief --cpu-load 50.0,70.0 --timeout 300s

这个命令将会使用stress-ng工具来模拟随机CPU使用率50%至70%，持续5分钟。注意，这里使用了"--cpu 4"选项来指定使用4个CPU核心来执行stress-ng命令，如果您的系统的CPU核心数量不同，请根据实际情况进行修改。同时，注意使用小数点来代替百分号，这样才能被正确解析为数字。

相关问题

Value 50.0,70.0 contains non-numeric: '.0,70.0'

非常抱歉，我之前的回答还存在问题。正确的命令应该是:

stress-ng --cpu 4 --cpu-method matrixprod --metrics-brief --cpu-load 50%,70% --timeout 300s

这个命令将会使用stress-ng工具来模拟随机CPU使用率50%至70%，持续5分钟。注意，这里使用了"--cpu 4"选项来指定使用4个CPU核心来执行stress-ng命令，如果您的系统的CPU核心数量不同，请根据实际情况进行修改。同时，注意使用百分号来指定CPU使用率的范围。

java.lang.NumberFormatException: For input string: "2021-07-22T19:15:30"

This exception is thrown when the code tries to convert a string into a number, but the string is not in a valid number format. In this specific case, the string "2021-07-22T19:15:30" cannot be converted into a number because it contains characters that are not numeric. This error can occur in various situations, depending on the code logic and the input data.

For example, if the code is trying to parse a date string into a numeric value, it may need to use a different method or library that can handle date strings. Alternatively, if the code is expecting a numeric input from a user or a file, it may need to validate the input and reject any non-numeric values.

To fix this error, you need to identify the root cause of the problem and modify the code accordingly. The error message should provide some clues about where the error occurred and what data caused it. You can also use debugging tools or print statements to inspect the values of variables and parameters at runtime. Once you have identified the issue, you can update the code to handle the input data correctly and avoid the NumberFormatException.