謝謝啊，不過我已經(jīng)自己找到了，一開始找了好久

if(scoer?>=?10000)
????{
????????printf("%s\n","鉆石玩家");
????}
????else?if(scoer?>=?5000)
????{
????????printf("%s\n","白金玩家");????
????}
????else?if?(scoer?>=?1000);
????{
????????printf("%s\n","青銅玩家");?????
????}

這里條件判斷的變量是score，而不是scoer。 還有這一行?else if (scoer >= 1000);多了分號，if()后面是不需要加分號的。

修改后的代碼你看看

#include?<stdio.h>
int?main()?
{
????int?score?=?7200;
????//完善一下代碼
???if(score?>=?10000)
????{
????????printf("%s\n","鉆石玩家");
????}
????else?if(score?>=?5000)
????{
????????printf("%s\n","白金玩家");????
????}
????else?if?(score?>=?1000)
????{
????????printf("%s\n","青銅玩家");?????
????}
?????else
????{
????????printf("%s\n","普通玩家");????
????}
????return?0;
}