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题解 | #返回订单数量总和不小于100的所有订单的订单号#

select order_num from OrderItems -- 顺序:where group by order by /* where quantity>=100 group by order_num order by order_num; */ group by order_num...

2022-04-01

0 262

题解 | #使用字符函数统计字符串中各类型字符的个数#

#include <iostream> #include <string> using namespace std; int main() { string str; getline(cin, str);//getline(cin,str)输入字符串效率...

2022-04-01

0 301

题解 | #统计字符串中子串出现的次数#

#include <iostream> #include <cstring> using namespace std; #include<algorithm> int main() { char str[100] = { 0 }; char su...

2022-04-01

0 435

题解 | #编写函数实现两数交换（指针方式）#

#include <iostream> using namespace std; // write your code here...... void swap_int(int *p,int *q) { int temp=*p; *p=*q; *q=temp; ...

2022-04-01

0 247

题解 | #比较字符串大小#

#include <iostream> using namespace std; #include<cstring> int mystrcmp(const char* src, const char* dst); int main() { char s1[100]...

2022-04-01

0 314

题解 | #数组元素处理#

#include <iostream> using namespace std; void func(int* p, int n); int main() { int arr[6] = { 0 }; for (int i = 0; i < 6; i++) { ...

2022-04-01

0 269

题解 | #盒模型 - content-box#

{"css":"","js":"","html":"\n\n \n \n <style type="text/css">\n * {\n margin: 0;\n padd...

2022-03-31

0 392

题解 | #复制部分字符串#

#include <iostream> using namespace std; int main() { char str[30] = { 0 }; cin.getline(str, sizeof(str)); int m; cin >>...

2022-03-31

0 238

题解 | #获取字符串长度#

#include <iostream> using namespace std; int main() { char str[100] = { 0 }; cin.getline(str, sizeof(str)); //cin.getline(str,sizeof(s...

2022-03-31

0 262

题解 | #移除数组中的元素#

{"css":"","js":"function remove(arr, item) {\n var arr1=[];\n for(var i=0;i<arr.length;i++)\n {\n if(arr[i]!=item)\n ...

2022-03-31

0 276