switch($rank) { case 1: $speed = 50; break; case 2: $speed = 48; break; case 3: $speed = 46; break; case 4: $speed = 44; break; case 5: $speed = 42; break; case 6: $speed = 40; break; case 7: $speed = 39; break; case 8: $speed = 38; break; case 9: $speed = 37; break; case 10: $speed = 36; break; case 21 > '$rand' >10: $speed = 35; break; case 31 > '$rand' > 20: $speed = 34; break; case 41 > '$rand' > 30: $speed = 32; break; case 71 > '$rand' > 50: $speed = 31; break; case 101 > '$rand' > 70: $speed = 30; break; case 201 > '$rand' > 100: $speed = 29; break; case 301 > '$rand' > 200: $speed = 28; break; case 401 > '$rand' > 300: $speed = 27; break; case 501 > '$rand' > 400: $speed = 26; break;}
在运行的时候报错>符号有误 这是什么情况啊