将aa定义为片外RAM区的无符号字符型变量的正确写法是 A: unsignedchardataaa; B: signedcharxdataaa; C: externsignedchardataaa; D: unsignedcharxdataaa;
将aa定义为片外RAM区的无符号字符型变量的正确写法是 A: unsignedchardataaa; B: signedcharxdataaa; C: externsignedchardataaa; D: unsignedcharxdataaa;
1