我有以下疑问:
考虑从 sqlite 数据库中对下表进行 SELECT:
id | label
1 | P1
1 | P2
1 | P3
1 | P4
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我运行以下测试代码:
const unsigned char * new1;
const unsigned char * new2;
const unsigned char * new3;
const unsigned char * new4;
sqlite3_step(stmt);
new1=sqlite3_column_text(stmt,1);
sqlite3_step(stmt);
new2=sqlite3_column_text(stmt,1);
sqlite3_step(stmt);
new3=sqlite3_column_text(stmt,1);
sqlite3_step(stmt);
new4=sqlite3_column_text(stmt,1);
printf("%s\n%s\n%s\n%s\n",new1,new2,new3,new4);
printf("%p\n%p\n%p\n%p\n",new1,new2,new3,new4);
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我得到:
P4
P4
P4
P4
0x1d5b7f8
0x1d5b7f8
0x1d5b7f8
0x1d5b7f8
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我要打印
P1
P2
P3
P4
Address1
Address2
Address3
Address4
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有什么方法可以仅使用字符串文字来打印此内容,而不使用 buffer const char value[N];、strcpy 等...?