记录一下比较有趣的内容
if(a+b ==0.3){
alert("0.1+0.2不等于0.3")
}
而是0.3000000000000000....4
IntelliJ idea运行java 报错解决方法.
在用intelliJ运行java的时候提示报错.
objc[5498]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_111.jdk/Contents/Home/bin/java (0x1007044c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_111.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x1017294e0). One of the two will be used. Which one is undefined.