1. //  1.对字符变量可以直接重新赋值进行修改.
   
2.     char ch1 = 'b';
   
3.     printf("ch1的地址是: %p\n",&ch1);
   
4.     ch1 = 'T';
   
5.     printf("ch1 = %c\n",ch1);
   
6.     printf("ch1的地址是: %p\n",&ch1);
   
7.    
   
8.     //  2.ch2[4] = {'a','b','c','d'};对这样赋值的字符数组可以直接重新赋值进行修改
   
9.     char ch2[4] = {'a','b','c','d'};
   
10.     printf("ch2[1]  address:%p\n",&ch2[1]);
    
11.     printf("ch2[2]  address:%p\n",&ch2[2]);
    
12.     ch2[1] = 'g',ch2[2] = 'h';
    
13.     for (int i=0; i<4; i++) {
    
14.         printf("%c\t",ch2[i]);
    
15.     }
    
16.     printf("\n");
    
17.     printf("ch2[1]  address:%p\n",&ch2[1]);
    
18.     printf("ch2[2]  address:%p\n",&ch2[2]);
    
19.    
    
20.     //  3.ch3[4] = "abcd";对这样赋值的字符数组可以直接重新赋值进行修改
    
21.     char ch3[4] = "abcd";
    
22.     printf("ch3[1]  address:%p\n",&ch3[1]);
    
23.     printf("ch3[2]  address:%p\n",&ch3[2]);
    
24.     ch3[1] = 'g',ch3[2] = 'h';
    
25.     for (int i=0; i<4; i++) {
    
26.         printf("%c\t",ch3[i]);
    
27.     }
    
28.     printf("\n");
    
29.     printf("ch3[1]  address:%p\n",&ch3[1]);
    
30.     printf("ch3[2]  address:%p\n",&ch3[2]);
    
31.    
    
32.     //  4.*ch4 = "abcd";对这样赋值的字符指针不可以重新赋值进行修改,运行时会报错.此时"abcd"存储在数据区中,为字符串常量,不可对其修改.
    
33.     char *ch4 = "abcd";
    
34.     printf("ch4[1]  address:%p\n",&ch4[1]);
    
35.     printf("ch4[2]  address:%p\n",&ch4[2]);
    
36.     ch4[1] = 'g',ch4[2] = 'h';
    
37.     for (int i=0; i<4; i++) {
    
38.         printf("%c\t",ch4[i]);
    
39.     }
    
40.     printf("\n");
    
41.     printf("ch4[1]  address:%p\n",&ch4[1]);
    
42.     printf("ch4[2]  address:%p\n",&ch4[2]);
    
43.    
    
44.     //  5.char *ch5 = &chr;对单个字符指针,可以对其进行修改.此时ch5指针指向的是栈区的一块内存
    
45.     char chr = 'b';
    
46.     char *ch5 = &chr;
    
47.     printf("ch5 :%c\n",*ch5);
    
48.     printf("ch5  address:%p\n",ch5);
    
49.     *ch5 = 'h';
    
50.     printf("ch5 new:%c\n",*ch5);
    
51.     printf("ch5 new address:%p\n",ch5);
    
52.    
    

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1. //  1.对字符变量可以直接重新赋值进行修改.
   
2.     char ch1 = 'b';
   
3.     printf("ch1的地址是: %p\n",&ch1);
   
4.     ch1 = 'T';
   
5.     printf("ch1 = %c\n",ch1);
   
6.     printf("ch1的地址是: %p\n",&ch1);
   
7.    
   
8.     //  2.ch2[4] = {'a','b','c','d'};对这样赋值的字符数组可以直接重新赋值进行修改
   
9.     char ch2[4] = {'a','b','c','d'};
   
10.     printf("ch2[1]  address:%p\n",&ch2[1]);
    
11.     printf("ch2[2]  address:%p\n",&ch2[2]);
    
12.     ch2[1] = 'g',ch2[2] = 'h';
    
13.     for (int i=0; i<4; i++) {
    
14.         printf("%c\t",ch2[i]);
    
15.     }
    
16.     printf("\n");
    
17.     printf("ch2[1]  address:%p\n",&ch2[1]);
    
18.     printf("ch2[2]  address:%p\n",&ch2[2]);
    
19.    
    
20.     //  3.ch3[4] = "abcd";对这样赋值的字符数组可以直接重新赋值进行修改
    
21.     char ch3[4] = "abcd";
    
22.     printf("ch3[1]  address:%p\n",&ch3[1]);
    
23.     printf("ch3[2]  address:%p\n",&ch3[2]);
    
24.     ch3[1] = 'g',ch3[2] = 'h';
    
25.     for (int i=0; i<4; i++) {
    
26.         printf("%c\t",ch3[i]);
    
27.     }
    
28.     printf("\n");
    
29.     printf("ch3[1]  address:%p\n",&ch3[1]);
    
30.     printf("ch3[2]  address:%p\n",&ch3[2]);
    
31.    
    
32.     //  4.*ch4 = "abcd";对这样赋值的字符指针不可以重新赋值进行修改,运行时会报错.此时"abcd"存储在数据区中,为字符串常量,不可对其修改.
    
33.     char *ch4 = "abcd";
    
34.     printf("ch4[1]  address:%p\n",&ch4[1]);
    
35.     printf("ch4[2]  address:%p\n",&ch4[2]);
    
36.     ch4[1] = 'g',ch4[2] = 'h';
    
37.     for (int i=0; i<4; i++) {
    
38.         printf("%c\t",ch4[i]);
    
39.     }
    
40.     printf("\n");
    
41.     printf("ch4[1]  address:%p\n",&ch4[1]);
    
42.     printf("ch4[2]  address:%p\n",&ch4[2]);
    
43.    
    
44.     //  5.char *ch5 = &chr;对单个字符指针,可以对其进行修改.此时ch5指针指向的是栈区的一块内存
    
45.     char chr = 'b';
    
46.     char *ch5 = &chr;
    
47.     printf("ch5 :%c\n",*ch5);
    
48.     printf("ch5  address:%p\n",ch5);
    
49.     *ch5 = 'h';
    
50.     printf("ch5 new:%c\n",*ch5);
    
51.     printf("ch5 new address:%p\n",ch5);
    
52.    
    

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