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abs(x-<10 x-y>-10&&x-y<10 (x-<-10 !(y->10 (x-*(x-<100
abs(x-y)<10 x-y>-10&& x-y<10 !(x-y)<-10 !(y-x)>10 (x-y)*(x-y)<100
若a、b和c都是整型变量,则a + b-c是整型表达式 若x和y都是布尔型变量,则x && y是布尔型表达式 若x和y都是整型变量,则x>1,‖y<1是整型表达式 若a是布尔型变量,b和c都是整型变量,则a&&(b +c)>2是布尔型表达式
abs(x-<10 x-y>-10&&x-y<10 !(x-<-10 !(y->10 (x-*(x-<100
abs(x-y)<10 x-y>-10&& x-y<10 @(x-y)<-10 !(y-x)>10 (x-y)*(x-y)<100
abs(x-y)<10 x-y>-10&&x-y<10 !(x-y)<-10‖!(y-x)>10 (x-y)*(x-y)<100
若a、b和c都是整型变量,则a + b-c是整型表达式 若x和y都是布尔型变量,则x && y是布尔型表达式 若x和y都是整型变量,则x>1,‖y<1是整型表达式 若a是布尔型变量,b和c都是整型变量,则a&&(b + >2是布尔型表达式
abs(x-y)<10 x-y>-10&& x-y<10 @(x-y)<-10 !(y-x)>10 (x-y)*(x-y)<100
x=3 Or x=4 2<x<5 x<5 And x>2 Not(x<=2) And Not(x>=5)
abs(x-<10 x-y>-10&&x-y<10 !(x-<-10||!(y->10 (x-*(x-<100
abs(x-y)<10 x-y> -10&&x-y<10 ! (x-y) < -10 ‖ ! (y-x) >10 (x-y) * (x-y) <100
abs(x-<10 x-y>-10&&x-y<10 !(x-<-10‖!(y->10 (x-*(x-<100
abs(x-y)<10 x-y>-10&&x-y<10 !(x-y)<=10||!(y-x)>10 (x-y)*(x-y)<100
abs(x-y)<10 x-y>-10&&x-y<10 !(x-y)<-10 !(y-x)>10 (x-y)*(x-y)<100