有以下程序:includeincludemain(){char str[][20]={"Hello","Beijing"},*P 有以下程序: #include <stdio.h> #include <string.h> main() { char str[][20]={"Hello","Beijing"},*P=str[0]; printf("%d\n",strlen(p+20)); } 程序运行后的输出结果是( )。A.0B.5C.7D.20

有以下程序:includeincludemain(){char str[][20]={"Hello","Beijing"},*P

有以下程序: #include <stdio.h> #include <string.h> main() { char str[][20]={"Hello","Beijing"},*P=str[0]; printf("%d\n",strlen(p+20)); } 程序运行后的输出结果是( )。

A.0

B.5

C.7

D.20


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