var str
= false + 1
document
.write(str
)
var demo
= false == 1;
document
.write(demo
)
if(typeof(a
)&&-true + (+undefined
) + ""){
document
.write('基础扎实')
}
if(11 + "11" * 2 ==33){
document
.write("基础扎实")
}
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