博客展示了一个名为tot的函数，该函数接收一个手机号码字符串作为参数，通过多个while循环，将字符串中的全角数字（０ - ９）逐个替换为对应的半角数字（0 - 9），最后返回处理后的字符串，属于信息技术中编程函数应用。
function tot(mobnumber){
while(mobnumber.indexOf("０")!=-1){
mobnumber = mobnumber.replace("０","0");
}
while(mobnumber.indexOf("１")!=-1){
mobnumber = mobnumber.replace("１","1");}
while(mobnumber.indexOf("２")!=-1){
mobnumber = mobnumber.replace("２","2");}
while(mobnumber.indexOf("３")!=-1){
mobnumber = mobnumber.replace("３","3");}
while(mobnumber.indexOf("４")!=-1){
mobnumber = mobnumber.replace("４","4");}
while(mobnumber.indexOf("５")!=-1){
mobnumber = mobnumber.replace("５","5");}
while(mobnumber.indexOf("６")!=-1){
mobnumber = mobnumber.replace("６","6");}
while(mobnumber.indexOf("７")!=-1){
mobnumber = mobnumber.replace("７","7");}
while(mobnumber.indexOf("８")!=-1){
mobnumber = mobnumber.replace("８","8");}
while(mobnumber.indexOf("９")!=-1){
mobnumber = mobnumber.replace("９","9");}
return mobnumber;
}
while(mobnumber.indexOf("０")!=-1){
mobnumber = mobnumber.replace("０","0");
}
while(mobnumber.indexOf("１")!=-1){
mobnumber = mobnumber.replace("１","1");}
while(mobnumber.indexOf("２")!=-1){
mobnumber = mobnumber.replace("２","2");}
while(mobnumber.indexOf("３")!=-1){
mobnumber = mobnumber.replace("３","3");}
while(mobnumber.indexOf("４")!=-1){
mobnumber = mobnumber.replace("４","4");}
while(mobnumber.indexOf("５")!=-1){
mobnumber = mobnumber.replace("５","5");}
while(mobnumber.indexOf("６")!=-1){
mobnumber = mobnumber.replace("６","6");}
while(mobnumber.indexOf("７")!=-1){
mobnumber = mobnumber.replace("７","7");}
while(mobnumber.indexOf("８")!=-1){
mobnumber = mobnumber.replace("８","8");}
while(mobnumber.indexOf("９")!=-1){
mobnumber = mobnumber.replace("９","9");}
return mobnumber;
}
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