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warning C4700: local variable ‘L’ used without having been initialized
这是指L被定义了但没有初始化 -
warning C4013: ‘malloc’ undefined; assuming extern returning int
这是指malloc()函数未定义,应包含头文件stdlib.h -
warning C4047: ‘initializing’ : ‘struct SqList *’ differs in levels of indirection from 'int ’
这是指在初始化时,两个不同类型的变量间接量级不同,可以使用强制转换解决