IF嵌套如何优化写法?
像这样的IF条件还能再怎么写好,应该不能用switch,毕竟要判断时间、次数、IP等条件。
if(访问时间段){
echo "正常时间段";
if(ID范围){
echo "正常ID范围";
if(访问次数){
echo "正常访问次数";
if(IP地址){
echo "正常IP地址";
}else{
echo "错误IP地址";
}
}else{
echo "访问次数过多";
}
}else{
echo "错误ID范围";
}
}
else{
echo "请注意休息";
}
回复讨论(解决方案)
平行的写法
while(true) { if(访问时间段){ echo "正常时间段"; }else { echo "请注意休息"; break; } if(ID范围){ echo "正常ID范围"; }else { echo "错误ID范围"; break; } if(访问次数){ echo "正常访问次数"; }else { echo "访问次数过多"; break; } if(IP地址){ echo "正常IP地址"; }else{ echo "错误IP地址"; break; } break;}
$error = 0;if(访问时间段){ echo "正常时间段";else{ $error = 1; echo "请注意休息";}if($error==0 && ID范围){ echo "正常ID范围";}else{ $error = 1; echo "错误ID范围";}if($error==0 && 访问次数){ echo "正常访问次数";}else{ $error = 1; echo "访问次数过多";}if($error==0 && IP地址){ echo "正常IP地址";}else{ $error = 1; echo "错误IP地址";}
二楼的平行结构很好理解,三楼的没用过哦……

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