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用户239839
2010-4-1 10:18
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C语言中动态分配数组(一维)
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今天找到了C语言中动态分配数组的用法: int *a; int N; scanf("%d", N); a = (int *) malloc(N * sizeof(int)); .... ...
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用户239839
2010-3-31 11:02
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几个概念
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ram:random access memory,随机存储器,可读可写,包括下列的各种ram rom: read only memory,只读不可写。 sram:static ram,静态ram,内部采用双稳态作 ...
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用户239839
2010-3-31 09:59
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9针-25针RS232串口针脚定义
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RS232 串口针脚定义 9 针接口针脚定义: Pin 1 CD Received Line Signal Detector (Data Carrier Detect) Pin 2 RXD Received Data Pin ...
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