【单选题】已有定义语句“ char ch1[10]= "12345" , ch2[10]= ” abede", ch3[10] ; ” ,句中能将 chl 中存储的字符串和 ch2 中存储的字符中正确交换的是
A.
ch3= ch1,ch1 = ch2, ch2 = ch3;
B.
ch3[0]= ch1[0],ch1[0]= ch2[0],ch2[0]-ch3[0];
C.
strcpy(ch3[0],ch1[0]),strcpy(ch1[0],ch2[0]) ,strcpy(ch2[0],ch3[0])
D.
strcpy (ch3,ch1), strcpy(ch1, ch2), strcpy(ch2, ch3);