设有 static char str[]="Beijing"; 则执行 printf("%d\n",strlen(strcpy(str,"China"))); 后的输出结果为_______。
A.5
B.7
C.12
D.14
发布时间:2024-05-07正确答案:A
解析:在执行printf()函数前,数组str的长度是7,但是当使用strcpy()函数将新的值赋给str后,strlen()函数返回的应当是现在的str字符串的字符个数,即是5。
如果String s1=“Chongqing” 则运行代码String s3=s1.substring(2 4)后s3的值为()
如果String s1=“Chongqing”,则运行代码String s3=s1 substring(2,4)后s3的值为() A、honB、hoC、onD、ngq
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