我是用了malloc函数 需要引入 头文件，引入以后 报错 ..\OBJ\UCOS-1.axf: Error: L6915E: Library reports error: __use_no_semihosting was requested, but _ttywrch was referenced 看了网上 说是要勾选 use micro LIB 勾选以后 确实没问题了 但是 程序就会跑飞 经过debug确定
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